1.Is Mary an English girl?Yes,she is./No,she isn't.Mary isn't an English girl.
2.Is it a map of china?Yes,it is./No,it isn't.It isn't a map of china.
3.Is that a yellow quilt?Yes,it is./No,it isn't.That's not a yellow quilt.
4.Are you twelve?Yes,Iam./No,I'm not.I'm not twelve.
5.Is this a red ruler?Yes,it is./No,it isn't.This isn't a red ruler.
6.Is Tom a Chinese?Yes,he is./No,he isn't.Tom isn't a Chinese.