Identify the part containing a grammatical or structural error:
One of the questions were very difficult.
Show answer & explanation
Correct answer: B
Explanation
The part containing the grammatical error is "were".
Explanation:
Subject-Verb Agreement: The subject of the sentence is "One", which is a singular pronoun. Even though "questions" is plural, it is part of a prepositional phrase ("of the questions") and does not change the number of the subject.
Correction: Since the subject is singular, it requires the singular verb "was" instead of the plural "were".
Correct Sentence: One of the questions was very difficult.