Weshouldn'tdrink________wedriveandwemustn'tdriveif   we...

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问题详情:

Weshouldn'tdrink________wedriveandwemustn'tdriveif   we...

We shouldn't drink ________ we drive and we mustn't drive if    we've drunk.

A.unless  B.before  C.until  D.while

【回答】

B [考查状语从句。句意:开车前我们不应喝酒,而如果喝酒了就一定不要开车。根据句意可知,此处应用before引导时间状语从句。]

知识点:连词

题型:选择题

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