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-–Mary knows the city quite well. --She well have been there before. A.need B.co

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-–Mary knows the city quite well. --She well have been there before. A.need B.co

-–Mary knows the city quite well.

--She______ well have been there before.

A.need             B.could             C.should            D.may

 

试题答案

【答案】

D

【解析】

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