读句子，判断对错。
（____） 1. Who’s he?
（____） 2. She my mother.
（____） 3. He is my grandfather.

—__________ are you?—I'm nine years old. (    )

A．How

B．How old

C．How many

连词成句
1.it,   is,   what  (?)  _____________________________________
2.sweet,   it,   is,   and,   sour   (.)  _________________________ 
3.a,   This,  is,   lemon   (.) __________________________________
4.is,   it,   how   (?) _________________________________________

连词成句
1. you, what, doing, are (?)
_________________________________
2. is, she, an, reading, email (.)
_________________________________
3. in, is, class, my, she (.)
_________________________________
4. Peter, at, good, sports, is (.)
_________________________________
5. playing, Fido, they, are, with (.)
_________________________________

The dog found the people. （对画线部分提问）
________ ________the dog________?