He paid for a seat, when he have entered free. A. couldB. wouldC. mustD. need

发布时间：2020-08-14 23:42:23

He paid for a seat, when he      have entered free.
A. could
B. would
C. must
D. need

网友回答

(答案→)A. could
B. would
C. must
D. need
解析：could have done的意思是“本来可以做某事”。句子语境为“虽然他本来能够免费入场，但他买了票”。
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