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1.Don't come in_____ I call you.We talking about something important.(  )
A.IfB.unlessC.becauseD.when

分析 不要进来除非我叫你.我们正在谈论一些重要的事情.

解答 答案:B 考查连词词义辨析.if意为如果,unless意为除非,because意为因为,when意为当…时,结合语境应该是不要进来除非我叫你.故选择B.

点评 考查连词词义辨析.比较和分析选项中连词的不同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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