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【題目】We don’t doubt _____ he will succeed in the research work.

A. thatB. whether

C. howD. what

【答案】A

【解析】

考查名詞性從句。句意:我們不懷疑他會在研究工作中取得成功。動詞doubt在否定句或疑問句中通常接that引導的從句。故選A。

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