问题描述: mary loves to sing songs 对 to sing songs 提问 1个回答 分类:英语 2014-10-10 问题解答: 我来补答 问:What does mary love to do?答:Mary loves to sing songs. 再问: 这个句子做否定句疑问句和肯定回答 再答: 问:Doesn't Mary love to sing songs? 答:Yes,she loves to sing songs.再问: 这个句子否定句 再答: Mary doesn't love to sing songs. 展开全文阅读