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13.-Have you cleaned your room_____?
-Yes,I've_____cleaned it.(  )
A.already,alreadyB.yet,yetC.already,yetD.yet,already

分析 ---你打扫你的房间了吗?
--是的,我已经打扫了.

解答 答案:D.
根据-Have you cleaned your room_____?-Yes,I've_____cleaned it.可知---你打扫你的房间了吗?--是的,我已经打扫了.这里考查already,yet的区别.already用在肯定句中,yet用在否定句或疑问句中.故选D.

点评 比较和分析already,yet的不用含义及其用法是解答该题的关键;还要根据句中信息正确推测该句句意,进而作出解答.

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