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.