【題目】As you worked late last night, you __________ have come this morning.

A.may notB.can’tC.mustn’tD.needn’t

【答案】D

【解析】

考查情態(tài)動詞+have done。句意：由于你昨天晚上工作到很晚，所以你今天早上本沒必要來的。分析句子，根據(jù)前句提及的“As you worked late last night”可知，今天早上你沒必要來的。needn’t have done 表示過去做了沒必要做的事情。此處符合句意，故選D項。

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