用适当的代词填空,使句子完整通顺

用适当的代词填空,使句子完整通顺
This is my mother.____is a teacher.
Tom is a student.____is nine.
-What are those?
-____are pencils.
I'm a Chinese boy.____name is Li Lei.
That is my sister.____name is Jane.
-What's_____name?
-My name is Lynn.
He is jack Smith._______last name is Smith
-What's that in English?
-_____is an apple
用be动词（is am are）填空,使句子完整、通顺.
_____this her backpack?
Your name_____nice
Mike and Peter_____boys
Those_____my books
Hi!I____Ann
How_____Paul?
These are two_____
This is an_____
It's a______
Is that your______?
Here is my_____ ______
-What's this in English?
-It's a________