问题描述: 疑问副词与疑问代词的区别 1个回答 分类:英语 2014-09-25 问题解答: 我来补答 I don’t know how to do it.这一句中用how,而不能用what,理由是what是疑问代词,而how是疑问副词.how 表示如何,怎么样,在句中作状语.what 表示什么,在句中可以做主语,宾语,表语.例如:I don't know what to do.I don't know how to do it.How do you finish your work?What do you see in the picture? 展开全文阅读