—The meeting is about to start, yet the speaker hasn’t turned up.
— No one knows .
A. what the matter is
B. what is the wrong
C. what is the matter
D. how matter stood
网友回答
A. what the matter is
B. what is the wrong
(答案→)C. what is the matter
D. how matter stood
解析:考查宾语从句。句意:会议即将开始,然而演讲者还没有出现。没人知道是怎么回事。No one knows后是一个宾语从句,应用陈述句语序,what is the matter / what is wrong,怎么了,语序不变,所以选C。