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11.-Guess what!I have got A for my term paper.
-Great!You ______ read widely and put a lot of work into it.(  )
A.mustB.shouldC.must haveD.should have

分析 --你猜怎么着!我的学期论文得了A.
--太棒了!你肯定是做了大量的阅读并且投入了很多工作.

解答 答案是C.本题考查表示推测的情态动词的用法.情态动词must表示推测只能出现在肯定句中,表示有客观依据的推测"准是,一定是".should表示推测时往往表示"按照常理常规的推测",表示"按照道理应该…";由上文的客观依据"论文得A",推测"她肯定是付出很多",所以选用情态动词must,排除B和D;对过去的或已经发生的事件的说明必须用"情态动词+have done"的结构,故答案是C.

点评 在正确理解情态动词的基本含义的基础上,整体理解语境中的情感态度,做出合理的判断.

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