题目内容：

1、This is a coat.2、I am a student.3、You are a star.改为否定句和疑问句和回答

优质解答

1.This isn't a coat.
Is this a coat
Yes,it is.
No,it isn't.
2.I am not a sutdent.
Are you a student
Yes,I am.
No,I'm not.
3.You aren't a star.
Are you a star
Yes,I am.
No,I'm not.
不明白的再问哟,请及时采纳,多谢!