用适当的代词填空
1.This is Tom．____ is an English boy．
2.That's Tina．____  eraser is red．
3.This is a cat．____name is Mimi．____ is two years old．
4.That's Miss Yang．____ is my English teacher．
5.Are these your sisters?  No,____ aren't．
6.This is my friend, John．____ is 12 years old．
7.What's____ favorite color? My favorite color is red．
8.That is Mr. Green．____telephone number is 355-2829．
9.Is Jeff your brother? Yes,____  is．