Choose the sentence that is grammatically correct.
2026
Choose the sentence that is grammatically correct.
Answer: C. One of the students has completed the task. — ConceptIn the pattern ‘one of + plural noun,’ the grammatical subject is the singular pronoun ‘one’; the phrase ‘of the students’ only identifies the group. A…
- A.
One of the students have completed the task.
- B.
One of the students are completing the task.
- C.
One of the students has completed the task.
- D.
One of the students were completed the task.
Attempted by 1 students.
Show answer & explanation
Correct answer: C
Concept
In the pattern ‘one of + plural noun,’ the grammatical subject is the singular pronoun ‘one’; the phrase ‘of the students’ only identifies the group.
A finite verb must agree with the head of its subject, not with a nearer noun inside a prepositional phrase. With a singular third-person subject, the present perfect uses ‘has + past participle.’
Application
Identify the complete subject: ‘One of the students.’
Its head is ‘One,’ which is singular; ‘students’ is the object of the preposition ‘of.’
Choose the singular auxiliary ‘has’ and combine it with the past participle ‘completed.’
This produces ‘One of the students has completed the task.’
Cross-check and contrast
‘One of the students have completed the task’ uses the plural auxiliary ‘have’ with the singular head ‘one.’
‘One of the students are completing the task’ uses plural ‘are’ and changes the construction to present continuous.
‘One of the students were completed the task’ uses plural past ‘were’ and creates an unsuitable passive construction.
Cross-check by removing the prepositional phrase: ‘One has completed the task’ retains the same subject–verb agreement.
Result
Therefore, the grammatically correct sentence is ‘One of the students has completed the task.’