In the following questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is d: i.e. No error.
The ruins of the spillway are a vital clue to the epic struggle that unfold as generations of Khmer engineers coped with a water system that grew complex and unruly.
The correct answer is option - B
In the sentence, ‘that’ is a relative pronoun which refers to ‘epic struggle’ and it is a singular subject. So, a singular verb ‘unfolds’ must be used instead of ‘unfold’.
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