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 ____ him so far, she felt a little worried.

     A.Having not hear from          B.Not having heard from

     C.Not hearing from              D.Have not heard from

 

【答案】

B

【解析】本题考查的是-ing分词作状语的用法。完成时态的否定形式,注意所有非谓语动词的否定都是在前面直接加not.因为是先没收到他的来信,所以感到有点担心。选B。

 

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