英语肯定句变否定句和一般疑问句.

题目

英语肯定句变否定句和一般疑问句.
1.She teaches us Chinese.
2.My brother is playing the piano.

答案

肯定句:She teaches us Chinese.
否定句:She doesn't teach us Chinese.
一般疑问句:Does she teach you Chinese?
肯定句:My brother is playing the piano.
否定句:My brother isn't playing the piano.
一般疑问句:Is your brother playing the piano?