1.He is tidying his room.(变否定句） 2.She is dan cing.（变一般疑问句）

1.He is tidying his room.(变否定句）
He is not tidying his room
2.She is dan cing.（变一般疑问句）
Is she dancing?
3.They are playing footbll.（变一般疑问句）
Are they playing football?
4.Are you drinking?（否定回答）
No,I'm not.
5.Is he doing homework?(肯定回答）
Yes,he is.