問題詳情：
—What did he say _______ his stupid behavior?
—He admitted having made a serious mistake.
A. in front of B. in explanation of C. in case of D. in fear of
【回答】
B
【解析】句意：——他對自己的愚蠢行爲作何解釋？——他承認犯了一個嚴重的錯誤。in front of在……前面；in explanation of對……作出解釋；in case of遇到……的時候；in fear of擔心……、害怕……。故選B項。
知識點：詞組 短語
題型：選擇題
