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Zorluk: Çok zorVerb Tense and Consistency

As the temperature of the Earth's oceans continues to rise, marine biologists have observed a rapid migration of warm-water species toward polar regions. These shifting populations, which alter local food webs and disrupt established fisheries, demonstrated the speed of ecological change, highlight the urgency of conservation, and show the need for adaptive regulations.

Which choice best maintains the tense consistency and parallel structure of the sentence?

  1. A
    NO CHANGE
  2. B
    demonstrates
  3. demonstrateCevap
  4. D
    demonstrating

Cevap

demonstrate
The correct option is 'demonstrate' because it is a plural present-tense verb that agrees with the plural subject 'populations' and is parallel to the other verbs in the series, 'highlight' and 'show'.

Adım Adım Çözüm

1
Analyze the context of the paragraph to determine the primary tense.
The paragraph is written in the present tense, as indicated by verbs like 'continues', 'alter', and 'disrupt'.
This establishes that the target verb should be in the present tense unless there is a logical reason to shift the timeline.
2
Identify the grammatical role of the underlined verb within its sentence.
The underlined verb is the first item in a compound predicate, followed by 'highlight' and 'show'.
Verbs in a compound predicate or list must be parallel in tense and form. Since 'highlight' and 'show' are present tense verbs, the target verb must also be a present tense verb.
3
Locate the subject of the verb and check for subject-verb agreement.
The subject is 'These shifting populations', which is plural.
The verb must agree in number with the plural subject 'populations', ignoring intervening singular nouns in the relative clause such as 'web' and 'fisheries'.
4
Select the option that is present tense, plural, and parallel.
The word 'demonstrate' is the present plural form and fits the parallel structure.
This resolves all grammatical requirements of tense, parallelism, and agreement.

Anahtar Kavram

Verb Tense and Consistency
Bu soruyu puanla

Konular

Verb Tense and Consistency

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