( ) why he did such a foolish thing,the boy hung his head and said nothing.

题目

( ) why he did such a foolish thing,the boy hung his head and said nothing.
A:When asking B:When asked C:To be asked D:When he asked.
答案是B,我选的是A,不大明白为什么.求详解,谢谢

答案

答案：B翻译：当被问到为什么要做这么愚蠢事情的时候,这个男孩低下了头,什么也没说.答案B,asked 用的是过去分词,表示被动,也就是说asked与后面的the boy存在这被动的关系,即:the boy was asked (by someone).答案A ...