题目内容
—Guess what! I have got A for my term paper.
—Great! You ______ read widely and put a lot of work into it.
A. must B. should C. must have D. should have
【答案】
C
【解析】本题考查情态动词的用法。由“have got A”可知是对过去发生事情的推测,故用“情态动词+have done”结构。must have done表示“必定做过某事”,符合题意。
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