I didn’t believe the reasons he explained me.A. forB. aboutC. toD. on

问题补充：

I didn’t believe the reasons he explained me.

A. for

B. about

C. to

D. on

答案：

A. for

B. about

(答案→)C. to

D. on

解析：考查介词，固定搭配explain sth to sb意思“向某人解释某事”，句子意思“我不相信他向我解释的原因”，所以选C