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.shouldB.should haveC.mustD.must have
D
考查情态动词, must have done 表是对过去事情肯定的推测,句意:猜怎么了?我在这学期的考试中得了A,太棒了!你一定大量的阅读为考试投入了大量的工作,故选D。
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