Question

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

A．explained                             B．what he explained

C．how he explained                       D．why he explained

Answer

A

【解析】

试题分析：句意：这就是那个他在会议上解释的由于工作粗心的原因吗？explained at the meeting for his carelessness in his work这是定语，修饰the reason，它与explain之间是被动关系，故用过去分词。如果用定语从句必须用关系代词做explain的宾语，用that或which都行。故选A。

考点：考查非谓语动词的用法。