Soru

Zorluk: OrtaSubject-Verb Agreement

The intricate tunnel network constructed by leafcutter ants serves as a highly organized underground city. Within this subterranean system, a complex division of labor, which includes specialized roles for workers of different sizes, ensure that the colony functions efficiently.

Which choice best corrects the underlined word to maintain proper subject-verb agreement?

  1. A
    NO CHANGE
  2. ensuresCevap
  3. C
    ensured
  4. D
    are ensuring

Cevap

The correct verb form is the singular, present-tense 'ensures' to agree with the singular subject 'division'.
The true subject of the clause is the singular noun 'division'. The plural nouns 'roles', 'workers', and 'sizes' are part of an intervening relative clause and do not affect the subject's number. Therefore, the singular verb 'ensures' is required. Since the rest of the passage is in the present tense ('serves', 'functions'), the present-tense form 'ensures' maintains the correct tense consistency.

Adım Adım Çözüm

1
Identify the subject of the clause.
The subject is 'division', which is a singular noun.
The intervening phrase 'of labor' and the relative clause 'which includes specialized roles for workers of different sizes' contain plural nouns ('roles', 'workers', 'sizes') but do not change the singular nature of the main subject 'division'.
2
Determine the correct verb tense and number.
The verb must be singular to match the singular subject 'division', and it must be in the present tense to match the rest of the passage ('serves', 'functions').
Subject-verb agreement requires singular subjects to pair with singular verbs, and the overall context of the passage is in the present tense.
3
Evaluate the choices to find the match.
The form 'ensures' is singular and present tense, matching the subject 'division'.
This resolves the grammatical error without introducing tense inconsistency or other errors.

Anahtar Kavram

Subject-Verb Agreement
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