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【题目】What the doctors really doubt is________ my mother will recover from the serious illness soon.

A.when B.how C.whether D.why

【答案】C

【解析】

试题分析:考查表语从句。句意:医生们真正怀疑的是我妈妈是否会很快从这次严重的疾病中恢复过来。主语从句“What the doctors really doubt”表示的是不确定的事情,ABD三项与上下文含义不一样。只有C项符合上下文。故C正确。

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