—Guess what ! I have got A for my term paper .—Great ! You read widely and put a lot of

问题补充：

—Guess what ! I have got A for my term paper .

—Great ! You read widely and put a lot of work into it .

A. should

B. should have

C. must

D. must have

答案：

A. should

B. should have

C. must

(答案→)D. must have

解析：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。