Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "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.
(1) coped with a water system that grew complex and unruly.
(2) to the epic struggle that unfold as generations of Khmer engineers
(3) The ruins of the spillway are a vital clue
(4) No Error
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
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Correct Answer: 2
Solution : The verb "unfold" is in the present tense, but it should be in the past tense to correctly describe an action that occurred in the past. Therefore, it should be "unfolded" to match the past context of the sentence.
The corrected sentence is, "The ruins of the spillway are a vital clue to the epic struggle that unfolded as generations of Khmer engineers coped with a water system that grew complex and unruly."
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