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Question

Difficulty: MediumSubject-Verb Agreement (Concord)

Read the sentence below and fill in the missing word. Which verb form correctly satisfies the rules of grammatical concord?

Answer:Professor Evelyn is one of the few climate scientists who 【have】 consistently advocated for stricter environmental policies.

Answer

have
In the structure 'one of the [plural noun] who/that', the relative pronoun 'who' refers to the plural noun immediately preceding it ('climate scientists'). Therefore, the verb inside the relative clause must be plural ('have').

Step-by-Step Solution

1
Identify the relative clause and its relative pronoun subject.
The relative clause is 'who... consistently advocated', introduced by the relative pronoun 'who'.
A relative pronoun takes its number and person from its antecedent noun.
2
Determine the antecedent of the relative pronoun 'who'.
The antecedent is the plural noun 'climate scientists', not the singular pronoun 'one'.
In the construction 'one of the [plural noun] who', the relative pronoun refers back to the plural noun in the phrase.
3
Select the verb form that agrees with the plural antecedent.
The auxiliary verb 'have' must be used.
Since 'climate scientists' is plural, the relative clause requires the plural auxiliary verb 'have'.

Key Concept

Relative Pronoun Concord (One of the + Plural Noun + Who + Plural Verb)
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Topics

Subject-Verb Agreement (Concord)

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