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4.Sally,a shy girl,never speaks in public _______ she is asked to,never!(  )
A.untilB.unlessC.even thoughD.as though

分析 sally 是个害羞的女孩,她从不当众发言.除非她被要求回答问题.

解答 答案:B.根据选项until直到; unless除非,even though即使,as though似乎,好像,再结合句意,sally 是个害羞的女孩,她从不当众发言.除非她被要求回答问题,可知此处缺少了一个引导让步状语从句的连接词,故选B.

点评 故本题考查让步状语从句的连接词,在充分分析句型再结合语义的基础上便能选出正确答案,同时要注意其他选项的意思,

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