Question

( ) 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

Answer 1

你好！
主语省略的时候，前后主语是一致的情况
后半句主语是the
boy,
前面的主要也是the
boy
,
完整的句子是
When
the
boy
was
asked
why
he
did
such
a
foolish
thing
=
省略句
When
asked
why
he
did.....
这里的asked是被动句中的过去分词
表被动，怎么可以用asking代替呢？
希望对你有所帮助，望采纳。