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We shouldn’t drink _______ we drive and we mustn’t drive if we’ve drunk.

A. unless????????? B. before???????? C. until???????????? D. while

 

【答案】

B

【解析】

試題分析:A. unless除非,B. before前面,C. until直到,D. while時候,句意:我們開車前不應該喝酒,如果喝酒了不能開車。所以選B

考點:考查連詞

 

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