问题描述： It is no use asking him about it为什么用asking分析句子结构词性急 1个回答 分类：英语 2014-12-10 问题解答： 我来补答 It is no use asking him about it主语从句,句中省略了一个词 for.如果中间有to,就应该用ask.It is no use (for) asking him about it 展开全文阅读
