问题描述: I don't know how old he is.(改为同义句) I have__ __how old he is. 1个回答 分类: 英语 2014-10-08 问题解答: 我来补答 I have_no idea_ __how old he is.I don't know how old he ishave no idea 就是不知道的意思=donot know 展开全文阅读