问题补充:
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
答案:
(答案→)A. he explained
B. what he explained
C. how he explained
D. why he explained
解析:首先判断到底引导的什么从句,第一步应先将反问句还原成陈述句,This is the reason at the meeting for his carelessness in his work。句意:他工作粗心是他在会议上解释的原因吗?很明显是定语从句。先行词the reason,引导词that作宾语省略。故选A。