问题描述： I am playing chess with my sister.变为否定句和一般疑问句.做两种回答 1个回答 分类：英语 2014-10-01 问题解答： 我来补答 I am not playing chess with my sister.否定句Are you playing chess with your sister?一般疑问句Yes,I am.肯定回答No,I'm not.否定回答 展开全文阅读
