Examkin

Conventions of Usage

416 questions

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Question 1Question →

Which word from the pair 'mitigate' and 'militate' correctly fills each blank in the sentence below?

Fill in the blanks below

Although the municipal committee hoped the new zoning laws would the environmental impact of rapid urban expansion, several economic factors threatened to against the success of the initiative.
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Answer

The first blank must be filled with 'mitigate' and the second blank must be filled with 'militate'.
The word 'mitigate' is a transitive verb meaning to alleviate or lessen, which correctly fits the first blank as it takes 'the environmental impact' as its direct object. The word 'militate' is an intransitive verb meaning to work or exert influence against something, which correctly fits the second blank and aligns with the preposition 'against' in the phrase 'militate against the success.'

Step-by-Step Solution

1
Define the meanings of the target words.
The verb 'mitigate' means to make less severe, serious, or painful (to alleviate). The verb 'militate' means to be a powerful or conclusive factor in preventing or acting against something, and it is almost always followed by the preposition 'against'.
Establishing definitions is necessary to determine which word fits the semantic and syntactic context of each blank.
2
Analyze the syntactic and semantic context of the first blank.
The first blank requires a transitive verb that can take the direct object 'the environmental impact.' Since the goal is to lessen the negative impact, 'mitigate' is the correct fit.
This determines the correct word for the first blank.
3
Analyze the syntactic and semantic context of the second blank.
The second blank is followed by the preposition 'against' and describes how economic factors act to prevent the success of the initiative. The verb 'militate' fits this structure and meaning perfectly.
This determines the correct word for the second blank.

Key Concept

Frequently Confused Words (Mitigate vs. Militate)
Estimated Time:1m 30s
Question 2Question →

Read the passage below:

In 1610, Galileo Galilei directed his newly constructed telescope toward the night sky, revealing Jupiter’s four largest moons. By recording their positions night after night in his leather-bound journal, these celestial bodies were proved to be orbiting a body other than Earth. This groundbreaking discovery directly challenged the geocentric model that had dominated European astronomy for centuries.

Which choice most effectively corrects the underlined portion to ensure the sentence is clear, logical, and grammatically correct?

Show answer & explanation

Answer: By recording their positions night after night in his leather-bound journal, Galileo proved that these celestial bodies were orbiting a body other than Earth.

Answer

The correct answer is the option that reads: 'By recording their positions night after night in his leather-bound journal, Galileo proved that these celestial bodies were orbiting a body other than Earth.'
The correct option is the one that introduces the subject 'Galileo' immediately after the introductory phrase 'By recording their positions night after night in his leather-bound journal'. This placement resolves the dangling modifier because Galileo is the person who recorded the observations. Additionally, this option maintains subject-verb agreement by correctly pairing the plural subject 'celestial bodies' with the plural verb 'were orbiting', and uses correct punctuation.

Step-by-Step Solution

1
Analyze the underlined portion in the context of the sentence to identify any modifier errors.
The introductory phrase 'By recording their positions night after night in his leather-bound journal' describes the action of recording observations. However, the subject of the main clause immediately following this phrase is 'these celestial bodies.' Because celestial bodies cannot write in a journal, this is a dangling modifier error.
An introductory modifying phrase must logically modify the subject that immediately follows the comma.
2
Evaluate the first choice ('NO CHANGE').
This choice retains the dangling modifier 'By recording... these celestial bodies were proved', which is grammatically incorrect.
It fails to align the modifying phrase with its logical subject (Galileo).
3
Evaluate the option with the intervening relative clause ('By recording their positions night after night in his leather-bound journal, Galileo proved that these celestial bodies, which challenged ancient theories, was orbiting a body other than Earth.').
This option corrects the dangling modifier by introducing 'Galileo' as the subject, but it introduces a subject-verb agreement error. The plural subject 'celestial bodies' is paired with the singular verb 'was orbiting' across the intervening nonessential clause 'which challenged ancient theories'.
A plural subject must agree with a plural verb regardless of any intervening descriptive phrase.
4
Evaluate the option that creates two independent clauses ('He recorded their positions night after night in his leather-bound journal, Galileo proved that these celestial bodies were orbiting a body other than Earth.').
This choice resolves the dangling modifier by creating two complete thoughts, but it joins them with only a comma, creating a comma splice error.
Two independent clauses cannot be joined by a comma alone without a coordinating conjunction or proper punctuation like a semicolon.
5
Evaluate the correct option ('By recording their positions night after night in his leather-bound journal, Galileo proved that these celestial bodies were orbiting a body other than Earth.').
This option correctly associates the introductory phrase with the subject 'Galileo' and maintains proper subject-verb agreement ('bodies' with 'were orbiting') and correct punctuation.
It resolves the dangling modifier without introducing any secondary grammatical errors.

Key Concept

Modifier Placement
Estimated Time:1m 30s
Question 3Question →

Deep within the cloud forests of Ecuador, a research team sought to locate the elusive *Dracula simia*, or monkey orchid. The expedition faced treacherous weather and steep terrain. Neither the experienced field guides nor the lead botanist, despite having spent decades documenting rare flora, was willing to risk their safety by scaling the crumbling limestone cliff to retrieve the single remaining specimen.

Which of the following choices best replaces the underlined word to ensure correct pronoun-antecedent agreement?

Show answer & explanation

Answer: his or her

Answer

his or her
The correct choice is 'his or her' because the sentence features a compound subject connected by the correlative conjunction 'neither... nor'. When antecedents of different numbers are joined this way, the pronoun must agree with the nearer antecedent. The noun closest to the pronoun is 'lead botanist', which is singular. Thus, a singular pronoun is required. Since 'lead botanist' refers to a person of unspecified gender, the phrase 'his or her' is grammatically correct and appropriate.

Step-by-Step Solution

1
Identify the antecedent of the pronoun and the structure of the subject.
The subject uses a correlative conjunction: 'Neither the experienced field guides nor the lead botanist'.
This determines which noun the pronoun must agree with.
2
Apply the rule of proximity for compound subjects connected by 'nor'.
The pronoun must agree with the nearer noun, which is the singular 'lead botanist'.
When singular and plural subjects are joined by 'or' or 'nor', the pronoun agrees with the closer subject.
3
Determine the correct singular pronoun that matches the person and gender/context of the closer noun.
The noun 'lead botanist' refers to a person of unspecified gender, which requires the singular pronoun 'his or her'.
The pronoun must match in both number (singular) and person/gender (human, singular).

Key Concept

Pronoun-Antecedent Agreement with Correlative Conjunctions
Question 4Question →

Complete the passage by entering the pronoun that correctly agrees with its antecedent under standard written English conventions.

Fill in the blanks below

While each of the newly established research laboratories in the biotechnology corridor boasts state-of-the-art gene-sequencing equipment, neither of the two facilities, despite receiving substantial initial funding from private investors, has yet finalized application for the federal development grant.
Show answer & explanation

Answer

its
The correct pronoun is 'its'. The subject of the main clause is the singular indefinite pronoun 'neither'. Even though it is followed by the plural prepositional phrase 'of the two facilities' and the parenthetical modifier 'despite receiving substantial initial funding from private investors', the antecedent remains singular. Therefore, it requires the singular possessive pronoun 'its' to maintain correct grammatical agreement.

Step-by-Step Solution

1
Locate the main clause and its grammatical subject.
The subject of the main clause is the indefinite pronoun 'neither'. The plural noun 'facilities' is contained within the modifying prepositional phrase 'of the two facilities' and is not the subject.
Identifying the true subject is critical because the possessive pronoun must agree with this antecedent in number.
2
Determine the grammatical number and person of the subject 'neither'.
Under the rules of standard written English, the indefinite pronoun 'neither' is singular. Because it refers to inanimate facilities, it is third-person and neuter.
Establishing the singular nature of 'neither' dictates that the corresponding pronoun must also be singular.
3
Determine the correct possessive pronoun form.
The singular neuter possessive pronoun 'its' is selected.
The singular possessive 'its' agrees with 'neither'. Using the plural 'their' creates a pronoun-antecedent agreement error.

Key Concept

Pronoun-Antecedent Agreement with Indefinite Pronouns
Question 5Question →

Read the sentence below and fill in the blank with the possessive pronoun that correctly agrees with its antecedent.

Fill in the blanks below

The lead archaeologist and the museum curator carefully unpacked the ancient artifacts to ensure that fragile surfaces remained undamaged.
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Answer

their
The pronoun refers back to the plural antecedent 'artifacts'. Therefore, the plural possessive pronoun 'their' is required to ensure correct pronoun-antecedent agreement.

Step-by-Step Solution

1
Identify the antecedent of the pronoun to be filled in the blank.
The antecedent is the plural noun 'artifacts'.
The pronoun modifies 'fragile surfaces', which belong to the 'artifacts'.
2
Determine the number of the antecedent.
The noun 'artifacts' is plural.
It refers to more than one historical object.
3
Select the correct plural possessive pronoun.
The plural possessive pronoun is 'their'.
Plural antecedents must be paired with plural pronouns to maintain correct pronoun-antecedent agreement.

Key Concept

Pronoun-Antecedent Agreement with Plural Nouns
Question 6Question →

After hours of deliberation, the manager and the supervisor finalized his decision regarding the new safety guidelines.

Which of the following is the correct choice for the underlined portion of the sentence?

Show answer & explanation

Answer: their

Answer

The pronoun must be changed to 'their' to agree in number with the plural compound antecedent 'the manager and the supervisor.'
The pronoun 'their' correctly agrees in number with the plural compound antecedent 'the manager and the supervisor' and functions as the possessive modifier for the noun 'decision.'

Step-by-Step Solution

1
Identify the antecedent of the pronoun.
The antecedent is the compound phrase 'the manager and the supervisor.'
To ensure correct agreement, the antecedent must be identified first.
2
Determine if the antecedent is singular or plural.
The compound antecedent consists of two nouns connected by 'and,' making it plural.
Nouns joined by 'and' form a plural subject.
3
Select the correct plural possessive pronoun that fits the sentence context.
The plural possessive pronoun 'their' is grammatically correct and fits the context.
This establishes proper pronoun-antecedent agreement in number.

Key Concept

Pronoun-Antecedent Agreement with Compound Antecedents
Estimated Time:45s
Question 7Question →

To prepare for the upcoming volcanic hazard assessment, the research team deployed several monitoring devices along the mountain's active ridge; however, neither the chief volcanologist nor the field technicians could explain why his equipment failed to record the seismic activity during the initial tremor.

Which of the following options correctly replaces the underlined pronoun to ensure proper grammatical agreement?

Show answer & explanation

Answer: their

Answer

The possessive plural pronoun 'their' is the correct choice to replace the underlined word because it agrees with the closer plural antecedent 'technicians' in the compound subject.
The correct option is the plural possessive pronoun 'their'. In sentences with compound antecedents joined by 'or' or 'nor', the pronoun must agree in number with the closer noun. Here, 'field technicians' is the closer noun and is plural, so the plural pronoun 'their' is grammatically correct.

Step-by-Step Solution

1
Identify the antecedent of the underlined pronoun.
The pronoun refers back to the compound antecedent 'neither the chief volcanologist nor the field technicians'.
To ensure pronoun-antecedent agreement, we must first locate the noun or nouns to which the pronoun refers.
2
Apply the grammatical rule for compound antecedents joined by 'or' or 'nor'.
Since the antecedents are joined by 'nor', the pronoun must agree in number with the closer noun, which is 'field technicians' (plural).
Standard English grammar dictates that when a singular and a plural noun are joined by 'or' or 'nor', the pronoun agrees with the noun that is physically closer to it.
3
Select the correct plural possessive pronoun from the choices.
The plural possessive pronoun is 'their'.
The sentence requires a possessive pronoun to modify 'equipment', and 'their' is the correct plural possessive form.

Key Concept

Pronoun-Antecedent Agreement with Compound Subjects
Question 8Question →

The following sentence contains an underlined portion.

Neither of the board members who attended the emergency session was prepared to submit their final report before the deadline.

Which choice is the grammatically correct replacement for the underlined portion?

Show answer & explanation

Answer: his or her final report

Answer

The correct choice is the option that replaces the underlined portion with 'his or her final report' to ensure pronoun-antecedent agreement.
The correct option replaces the underlined text with a singular possessive pronoun phrase that agrees in number with the singular antecedent 'Neither'. Since 'Neither' is singular, and the gender of the board members is not specified, 'his or her' is the grammatically correct choice. The singular verb 'was' in the sentence further confirms that the subject is singular.

Step-by-Step Solution

1
Identify the antecedent of the underlined pronoun.
The antecedent is the indefinite pronoun 'Neither', which is grammatically singular. The plural noun 'members' in the prepositional phrase 'of the board members' is not the antecedent.
The pronoun must agree in number with the actual subject/antecedent, not nouns in intervening prepositional phrases.
2
Determine the correct number and gender of the pronoun.
Since 'Neither' is singular and gender is unspecified, the singular possessive phrase 'his or her' is required.
Indefinite pronouns like 'neither', 'each', and 'everyone' are singular in standard written English.
3
Evaluate the choices to find the one that uses the singular possessive pronoun and is concise.
The phrase 'his or her final report' is correct and concise. The alternative 'the final report belonging to them' is wordy and contains a plural pronoun, and 'they're' is a contraction of 'they are'.
ACT English prioritizes grammatical correctness and conciseness, avoiding wordy or redundant constructions.

Key Concept

Pronoun-Antecedent Agreement with Singular Indefinite Pronouns
Question 9Question →

In the sentence below, a pronoun is missing. Which pronoun correctly completes the sentence to ensure proper pronoun-antecedent agreement?

Fill in the blanks below

The advisory council of urban architects presented final master plan for the riverfront redevelopment to the city council last Tuesday.
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Answer

The possessive pronoun 'its' is the correct answer because it agrees in number and gender with the singular, neuter collective noun 'council'.
The correct pronoun is 'its' because the antecedent 'advisory council' is a singular collective noun. A singular collective noun acting as a single unit requires a singular possessive pronoun.

Step-by-Step Solution

1
Identify the antecedent of the missing pronoun.
The antecedent is 'The advisory council'.
The pronoun must refer to the group that created and presented the master plan.
2
Determine the grammatical number (singular or plural) and gender of the antecedent.
The noun 'council' is a singular collective noun. The intervening prepositional phrase 'of urban architects' contains a plural noun, but it does not change the singular status of the main noun 'council'.
In standard formal English, collective nouns that act as a single unit are singular.
3
Choose the pronoun that matches the singular, neuter antecedent.
The singular possessive pronoun 'its' is selected.
To show possession for a singular, non-human antecedent, 'its' must be used.

Key Concept

Pronoun-Antecedent Agreement
Question 10Question →

Read the sentence below. Which pronoun correctly completes the sentence to ensure proper pronoun-antecedent agreement?

Fill in the blanks below

The committee of urban planners presented comprehensive redevelopment proposal to the city council during Tuesday's public hearing.
Show answer & explanation

Answer

its
The singular possessive pronoun 'its' correctly agrees with the singular collective noun 'committee,' which functions as a unified singular unit. The intervening prepositional phrase 'of urban planners' contains a plural noun, but it does not change the singular nature of the subject.

Step-by-Step Solution

1
Identify the antecedent of the missing pronoun.
The antecedent is the collective noun 'committee.'
The sentence describes the entity that presented a proposal. The prepositional phrase 'of urban planners' modifies the noun 'committee,' but 'committee' remains the singular subject and head of the noun phrase.
2
Determine the proper number and gender for the pronoun.
The pronoun must be singular, neuter, and possessive.
Collective nouns like 'committee' are singular when the group acts as a single, unified entity. The singular possessive pronoun for a non-human entity is 'its.'

Key Concept

A pronoun must agree in number with its antecedent. Singular collective nouns acting as a unit require singular pronouns, even when followed by prepositional phrases containing plural nouns.
Estimated Time:45s
Question 11Question →

Which pronoun correctly completes the sentence below while maintaining proper pronoun-antecedent agreement?

Fill in the blanks below

Neither the municipal libraries nor the local museum could verify that archival collection contained the rare 18th-century map of the county.
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Answer

its
The correct pronoun is 'its' because it is a singular possessive pronoun that agrees with the closer singular antecedent, 'the local museum', following the proximity rule for correlative conjunctions.

Step-by-Step Solution

1
Identify the antecedent of the pronoun.
The subject contains a compound antecedent joined by the correlative conjunction 'neither... nor': 'the municipal libraries' (plural) and 'the local museum' (singular).
Finding the antecedent helps determine the correct agreement.
2
Apply the rule of proximity.
When subjects are joined by 'neither... nor', the pronoun agrees with the closer antecedent. Here, the closer antecedent is the singular noun 'the local museum'.
The proximity rule determines pronoun number for compound subjects joined by 'neither... nor'.
3
Determine the correct pronoun form.
The singular possessive pronoun for the inanimate antecedent 'museum' is 'its'.
A possessive pronoun is required to show ownership of the 'archival collection'.

Key Concept

Pronoun-Antecedent Agreement with Correlative Conjunctions
Question 12Question →

The community orchestra has scheduled their annual fundraising gala for next Saturday evening.

Which choice most effectively maintains grammatically correct pronoun-antecedent agreement in the sentence?

Show answer & explanation

Answer: its

Answer

its
The pronoun refers to the 'community orchestra', which is a singular collective noun acting as a single group. Therefore, it requires a singular possessive pronoun. The pronoun 'its' is singular and possessive, making it the correct choice.

Step-by-Step Solution

1
Identify the antecedent of the underlined pronoun in the sentence.
The antecedent is 'orchestra'.
The pronoun refers back to the entity that scheduled the fundraising gala, which is the community orchestra.
2
Determine the number (singular or plural) of the antecedent.
'Orchestra' is a singular collective noun representing a single unified group.
Since the orchestra is acting as a single unit performing a single action, it requires a singular pronoun.
3
Select the correct singular possessive pronoun from the choices.
The singular possessive pronoun is 'its'.
The correct choice must show possession ('annual fundraising gala') and be singular to agree with 'orchestra'.

Key Concept

Pronoun-Antecedent Agreement with Collective Nouns
Question 13Question →

Neither of the female wildlife biologists who tracked the wolf pack in Wyoming was willing to share their raw telemetry data with the state agency.

Which option is the most grammatically correct replacement for the underlined word?

Show answer & explanation

Answer: her

Answer

The correct option is 'her' because the singular indefinite pronoun 'Neither' acts as the singular antecedent, requiring the singular feminine possessive pronoun 'her' for grammatical agreement.
The correct option is 'her' because the antecedent is the singular indefinite pronoun 'Neither.' Although the intervening prepositional phrase contains the plural noun 'biologists,' the pronoun must agree with the singular subject 'Neither.' Since the sentence specifies that the biologists are female, the singular feminine possessive pronoun 'her' is the grammatically correct choice.

Step-by-Step Solution

1
Identify the antecedent of the possessive pronoun.
The antecedent is the indefinite pronoun 'Neither,' not the plural noun 'biologists' in the intervening prepositional phrase.
The head of the subject phrase determines the number of the pronoun.
2
Determine the grammatical number and gender of the antecedent.
'Neither' is grammatically singular. The prepositional phrase 'of the female wildlife biologists' indicates that the individuals are female.
This establishes that a singular feminine possessive pronoun is required.
3
Select the pronoun that matches these grammatical properties.
The singular feminine possessive pronoun is 'her.'
It correctly agrees with 'Neither' in both number and gender.

Key Concept

Pronoun-Antecedent Agreement with Singular Indefinite Pronouns
Estimated Time:1m 0s
Question 14Question →

Neither the field technicians nor the lead conservationist who monitored the nesting habits of the endangered condors expected their data to be cited in the new environmental legislation.

Which option is the grammatically correct pronoun to replace the underlined word?

Show answer & explanation

Answer: his or her

Answer

The correct option is 'his or her' because it is a singular possessive pronoun that correctly agrees with the closer singular antecedent 'lead conservationist' in a compound subject joined by 'neither... nor...'.
The pronoun must agree with the closer antecedent in a compound subject joined by 'neither... nor...'. The closer antecedent is the singular noun 'lead conservationist'. Therefore, the pronoun must be singular. Since the pronoun must show possession over the noun 'data', the singular possessive pronoun 'his or her' is the correct choice.

Step-by-Step Solution

1
Identify the compound subject and its connectors.
The subject is 'Neither the field technicians nor the lead conservationist'. The connector is 'neither... nor...'.
This determines the agreement rule to apply.
2
Apply the proximity rule for 'neither... nor...' constructions.
The pronoun must agree in number with the closer antecedent, which is 'the lead conservationist' (singular).
In a compound subject joined by 'neither/nor', the pronoun agrees with the closer antecedent, ignoring the earlier plural noun 'field technicians' and the intervening relative clause.
3
Determine the gender and case of the pronoun.
The antecedent is a person ('conservationist'), and the pronoun modifies the noun 'data', requiring a possessive pronoun.
A singular possessive pronoun referring to a person is 'his or her'.

Key Concept

Pronoun-Antecedent Agreement with Compound Antecedents and Intervening Clauses
Estimated Time:1m 0s
Question 15Question →

Each of the structural engineers who reviewed the blueprint expressed their concerns regarding the stability of the foundation.

Which of the following options is the best replacement for the underlined portion of the sentence?

Show answer & explanation

Answer: his or her

Answer

his or her
The possessive pronoun 'his or her' is correct because it is singular, which properly agrees with the singular indefinite pronoun antecedent 'Each'. The intervening prepositional phrase 'of the structural engineers' does not change the fact that the subject of the clause is singular.

Step-by-Step Solution

1
Identify the antecedent of the pronoun in the sentence.
The antecedent is 'Each', which is a singular indefinite pronoun.
The pronoun must agree in number (singular or plural) with its antecedent.
2
Determine the role of the pronoun in the sentence to identify the correct case.
The pronoun modifies the noun 'concerns', indicating possession, so a possessive pronoun is required.
The correct form must be both singular and possessive.
3
Evaluate the choices to find the singular possessive pronoun.
The phrase 'his or her' is singular and possessive, which matches the antecedent 'Each'. The plural pronoun 'their' and its contraction homophone 'they're' are incorrect, while the subjective pronoun 'he or she' has the wrong grammatical case.
Only the singular possessive form maintains grammatical correctness under formal writing conventions.

Key Concept

Pronoun-Antecedent Agreement with Indefinite Pronouns
Question 16Question →

Complete the sentence below by typing the possessive pronoun that correctly agrees with its antecedent under standard written English conventions.

Fill in the blanks below

Each of the international research organizations that monitored the retreat of the glaciers in the Patagonia region was eager to publish independent findings in the annual climatology report.
Show answer & explanation

Answer

its
The correct pronoun is the singular possessive 'its' because it agrees with the singular indefinite pronoun 'Each', which is the true antecedent of the sentence. The plural noun 'organizations' inside the modifying prepositional phrase does not affect the grammatical number of the subject.

Step-by-Step Solution

1
Identify the subject and antecedent of the pronoun in the sentence.
The subject and antecedent is the singular indefinite pronoun 'Each'.
The prepositional phrase 'of the international research organizations' modifies 'Each' but does not change its singular grammatical number.
2
Determine the correct grammatical number and person for the pronoun that must fill the blank.
The pronoun must be singular and third-person to agree with 'Each'.
A pronoun must agree in number (singular/plural) and person with its antecedent.
3
Select the correct possessive pronoun to complete the phrase 'independent findings'.
The singular possessive pronoun is 'its'.
Since the antecedent 'Each' is singular and refers to inanimate organizations, the singular third-person possessive pronoun 'its' is required.

Key Concept

Pronoun-Antecedent Agreement with Indefinite Pronouns
Question 17Question →

Which pronoun should be placed in the blank to ensure correct pronoun-antecedent agreement in the sentence below?

Fill in the blanks below

The astronomers spent months gathering data, but the director of the observatory doubted findings.
Show answer & explanation

Answer

their
The pronoun 'their' is correct because it is a plural possessive pronoun that correctly agrees in number with the plural noun antecedent 'astronomers'.

Step-by-Step Solution

1
Identify the antecedent that the pronoun in the blank refers to.
The antecedent is 'astronomers'.
A pronoun must agree in number (singular or plural) with the antecedent it replaces.
2
Determine the number of the antecedent and select the corresponding possessive pronoun.
The antecedent 'astronomers' is a plural noun, so the plural possessive pronoun 'their' is required.
Using a singular possessive pronoun would create a pronoun-antecedent agreement error.

Key Concept

Pronoun-Antecedent Agreement
Estimated Time:45s
Question 18Question →

Either the head archivist or the research assistants have left his or her logs in the climate-controlled preservation room.

Which of the following options is the best replacement for the underlined portion of the sentence?

Show answer & explanation

Answer: their

Answer

The correct option is the plural possessive pronoun 'their', which matches the closer plural antecedent 'research assistants'.
The correct answer is the plural possessive pronoun 'their'. In a sentence with a compound subject joined by 'or' or 'nor' (such as 'Either the head archivist or the research assistants'), any pronoun referring back to this compound subject must agree in number with the closer of the two subjects. Because 'research assistants' is plural and is closest to the pronoun, the pronoun must be plural. The plural possessive pronoun 'their' correctly agrees with 'research assistants' and properly modifies 'logs'.

Step-by-Step Solution

1
Identify the compound subject of the sentence.
The compound subject is 'Either the head archivist or the research assistants'. It is joined by the coordinating conjunction 'or'.
Determining the structure of the subject is necessary to apply the correct agreement rules.
2
Apply the proximity rule for compound subjects joined by 'or' or 'nor'.
When a compound subject is joined by 'or' or 'nor', the verb and any subsequent pronouns must agree in number with the closer noun or pronoun in the construction.
This is the standard grammatical rule governing compound subjects joined by disjunctive conjunctions.
3
Determine the number of the closer antecedent.
The closer antecedent to the underlined pronoun is 'research assistants', which is plural.
We need to find the number of this noun to select the agreeing pronoun form.
4
Select the correct plural possessive pronoun.
The plural possessive pronoun is 'their', which correctly modifies the noun 'logs' and agrees with the plural antecedent 'research assistants'.
This pronoun satisfies both number agreement and possessive case requirements.

Key Concept

Pronoun-Antecedent Agreement with Compound Subjects
Question 19Question →

The following passage is an excerpt from an essay about art conservation:

"The preservation of historical landmarks often requires a delicate balance between authenticity and safety. During the recent renovation of the ancient cathedral, a team of specialized conservators was tasked with stabilizing the crumbling facade. The integrity of the stained-glass windows, which date back to the twelfth century and represent some of the finest examples of Gothic art in the region, are a primary concern for the preservationists. They must ensure that the delicate leading holding the glass panes together is not compromised during the structural reinforcements."

Which of the following options is the correct replacement for the underlined word "are"?

Show answer & explanation

Answer: is

Answer

is
The singular verb 'is' correctly agrees with the singular subject 'integrity' and maintains the present tense established in the surrounding context.

Step-by-Step Solution

1
Identify the grammatical subject of the clause containing the underlined verb.
The subject is the singular noun 'integrity.' The plural nouns 'windows' and 'examples' are objects within intervening prepositional phrases and relative clauses ('of the stained-glass windows, which date back to the twelfth century and represent some of the finest examples of Gothic art in the region') and do not affect the verb's agreement.
A verb must agree in number with its true grammatical subject, not with nouns inside modifying phrases or clauses.
2
Determine the appropriate number (singular or plural) for the verb.
Since 'integrity' is singular, the verb must be singular. This eliminates the plural forms 'are' (NO CHANGE) and 'were.'
Singular subjects require singular verbs.
3
Analyze the tense of the surrounding sentences to ensure consistency.
The passage discusses general principles ('requires') and ongoing concerns ('must ensure', 'is not compromised') in the present tense. Therefore, the verb must be in the present tense ('is'), which eliminates the past-tense form 'was.'
Verb tenses must remain consistent unless there is a logical reason to shift tenses.

Key Concept

Subject-Verb Agreement
Question 20Question →

The new line of organic cosmetic products has received praise because of their natural ingredients.

Which option correctly replaces the underlined pronoun in the sentence?

Show answer & explanation

Answer: its

Answer

The correct answer is the singular possessive pronoun 'its' because it correctly agrees with the singular antecedent 'line'.
The correct answer is 'its'. The noun phrase 'The new line of organic cosmetic products' has the singular noun 'line' as its head. The intervening prepositional phrase 'of organic cosmetic products' contains a plural noun, but the pronoun must agree with the main singular noun 'line'. Therefore, the singular possessive pronoun 'its' is required to show possession of the natural ingredients.

Step-by-Step Solution

1
Identify the pronoun and its antecedent in the sentence.
The underlined pronoun is 'their' and its antecedent is the singular noun 'line'.
Pronouns must agree in number with their antecedents.
2
Determine the correct grammatical form of the pronoun.
The possessive pronoun must be singular, which is 'its'.
'Line' is a singular noun, so the plural pronoun 'their' is incorrect.
3
Eliminate the grammatically incorrect options.
NO CHANGE is incorrect because it retains 'their'; 'it's' is incorrect because it is a contraction of 'it is'; 'they're' is incorrect because it is a contraction of 'they are'.
Only 'its' is a singular possessive pronoun that correctly completes the sentence.

Key Concept

Pronoun-Antecedent Agreement
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