1.Is it going to snew this evening?
Yes,it is.
No,it isnn't.
2.Are you going to play computer games tonight?
Yes,I am.
No,I'm not.
改否定句
1.Lily and Amy aren't going to take a trip next month.
2.I am not going to the park with my good friend this afternoon.
3.They aren't going to clean the classroom this weekend.
4.She isn't going to buy a pair of shoes for her dad tomorrow.
5.We aren't going to have a family meeting next week.
be动词的否定句在其后加not构成否定句,is not 可以缩写成isn't,are not 可以缩写成 aren't
I am not 可以缩写成：I'm not
不明白的再问哟,请及时采纳,多谢!