There was no light in the dormitory last night. So, they to the lecture then. A.
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There was no light in the dormitory last night. So, they ________ to the lecture then.
A. must have gone B. should have gone
C. needn’t have gone D. couldn’t have gone
试题答案
A
考查情态动词。must have done表示对过去所发生事情的肯定猜测。