--What did he say in of his stupid behavior?--He admitted having made a serious mistake.A.

问题补充：

--What did he say in of his stupid behavior?

--He admitted having made a serious mistake.

A. explanation

B. favor

C. case

D. fear

答案：

(答案→)A. explanation

B. favor

C. case

D. fear

解析：短语考查题。in explanation of 作为对…的说明； in favor of 支持； in case of 万一； in fear of 恐怕 “对他的愚蠢行为他是如何解释的？”“他承认他犯了严重的错误”选A。