【題目】I have no doubt that he will make it, but I wonder ______ he is really ready enough.

A.what B.why C.whether D.that

【答案】C

【解析】句意:我不懷疑他會成功,但是我很疑惑他是否真的準備好了。本題考查賓語從句。賓語從句的成分完整,所以排除連接代詞what;根據(jù)句意,此處缺少“是否”的意思,所以答案選擇whether;B項why表示“為什么”;D項that在賓語從句不缺主要成分,不缺意思時使用。

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