[7] Is this the reason ____ at the meeting for his carelessness i_英语解答

[7] Is this the reason ____ at the meeting for his carelessness in his work?
A.he explained
B.what he explained
C .how he explained
D.why he explained
翻译并详细分析.

人气：400 ℃　时间：2019-10-23 07:11:27

解答

句子意思是‘那就是他在会议上解释他工作中粗心的原因吗
句子是一个定语从句,the reason做explained的宾语,所以此处应该选择关系代词
C.D 中的 how,Why是关系副词,所以排除
what 不能引导定语从句
所以选A,that做宾语时省略