The reason at the meeting for being late was not reasonable.
A. why he gave
B. what he gave
C. he gave
D. on which he gave
网友回答
A. why he gave
B. what he gave
(答案→)C. he gave
D. on which he gave
解析：】这题考查定语从句，虽然先行词是the reason，但是定语从句中gave没有宾语，所以可以用which或that引导定语从句，也可省略关系代词。选C。