What the doctor really doubts is ______ my mother will recover from the serious disease soon.

A.when B.how C.whetherD.if

C

解析試題分析:考查表語從句:句意:醫(yī)生真正懷疑的是是否我媽媽會從重病中迅速恢復。Is后面是表語從句根據(jù)句意是“是否“,但if不能連接表語從句,用whether。選C。
考點:考查表語從句
點評:表語從句的考查主要的考查陳述語序和連接詞的詞義辨析。要根據(jù)句意和成分判斷選擇連接詞,如果不缺成分,就是用that,缺少主賓表,用what連接表語從句,語序要變成陳述句。

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