问题描述： He cleaned the room on Sunday .改否定、一般问、并两答,麻烦您了 1个回答 分类：英语 2014-12-03 问题解答： 我来补答 否定：He didn't clean the room on Sunday.一般问：Did he clean the room on Sunday?两答:Yes,he did.No,he didn't 展开全文阅读
