–Sorry, Professor Smith. I didn’t finish the assignment yesterday.--Oh, you _____ have done it as ye

题目简介

–Sorry, Professor Smith. I didn’t finish the assignment yesterday.--Oh, you _____ have done it as ye

题目详情

–Sorry, Professor Smith. I didn’t finish the assignment yesterday.
--Oh, you _____ have done it as yesterday was the deadline.
A. must     B, mustn’t      C, should      D. shouldn’t
题型:单选题难度:偏易来源:不详

答案

C

试题分析:考查should have done的固定句型,意思“本应该做某事,must have done表是对过去的一种虚拟,一定做某事;shouldn’t have done表示本不应该做事但是做了”, mustn’t表示禁止,句子意思“你本应该把它做完,但是你没有做完因为昨天是截止期限”,所以选C
点评:should have done的固定句型是常考内容,要知道它的意思,遇到此类题时,就很容易做出正确选择

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