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We last night, but we went to the concert instead. A. must have studied B.might

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We last night, but we went to the concert instead. A. must have studied B.might

We ______ last night, but we went to theconcert instead.

A. must have studied    B.mightstudy

C.should have studied   D.wouldstudy

 

试题答案

答案:C

解析:

本来应该学习却没有这么做,要用should have studied。