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单选题
183.The room is in a terrible mess. Itcleaned.
A
A. can51 have been
B
B. shouldn * t have been
C
C. mustnJ t have been
D
D. wouldnJ t have been
答案解析
正确答案：A
解析：
183.【翻译】房间里一团糟，它肯定没有被打扫过。【精析】 A can * t have done：不可能做过，是对过去事情的否定推测;shouldn* t have done：本不该做（却做了）；must have done： 一定做了，表示对过去发生事情的肯定推测，不存在mustn ＇ t have done这种形式；wouldn＇thave done常用于对过去情况的假设 根据句意可知，选A。
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