It’s very cold in the room.They off the steam. A.should have turned B.must have turned C.should turn D.must turn 解析:must have done“准是做了某事 .表示对过去事情比较肯定的推测. 答案:B 查看更多

 

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It’s very cold in the room. They ______ off the steam.

A. should have turned                     B.must have turned

C.should turn                           D.must turn

 

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It’s very cold in the room. They ______ off the steam.

A. should have turned                     B.must have turned

C.should turn                           D.must turn

 

查看答案和解析>>


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