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What the doctors really doubt is my mother wi1l recover from the serious disease

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What the doctors really doubt is my mother wi1l recover from the serious disease

What the doctors really doubt is ________my mother wi1l recover fromthe serious disease soon.

A.when   B.how    C.whether D.why

 

试题答案

答案:C

解析:
whether引导的表语从句,表示“是否……”。

 

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