- Guess what! I have won the first prize in the speaking competition. - Congratulations! You put a lot of work into it.A. should B. must C. should have D. must have 题目和参考答案——青夏教育精英家教网—

题目内容

— Guess what! I have won the first prize in the speaking competition.

— Congratulations! You _____ put a lot of work into it.

A. should B. must C. should have D. must have

【解析】

试题分析：考查情态动词。句意猜猜看，我记得演讲比赛第一名。祝贺你，你肯定是投入很多精力在这上面。根据上文提到已经取得成功，故表示对过去的肯定推测，所以选D项。

考点 : 考查情态动词

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