Is this the reason at the meeting for his carelessness in his work?

A. what he explained B. how he explained

C. he explained D. why he explained

 

C

【解析】考查定語從句。句意: 這是他在會上為他工作中的粗心大意所解釋的原因嗎? 根據(jù)句意這里需要一個定語從句, 修飾先行詞the reason。在定語從句中先行詞the reason作explained的賓語, 用關(guān)系代詞that或which, 也可省略; how, why都是關(guān)系副詞不符合, what不作定語從句的關(guān)系詞, 排除A、B、D。故選C。

 

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