I don’t believe the reason he has given for not coming to the lecture.A. whyB. thatC. how

问题补充：

I don’t believe the reason he has given for not coming to the lecture.

A. why

B. that

C. how

D. what

答案：

A. why

B. that

C. how

D. what

解析：根据句意,要填的关系代词在定语从句中作given的宾语,故用that。