Everyone ____ to their teacher in the classroom. （ ）

A．are listening

B．is listening

C．listen

Whose trousers ___________? （  ）

A．is it

B．they are

C．are they

选词按适当形式填空，
be    library    have    we    play   cloud
be    library    have    we    play   cloud
1、Look at the ________. They’re white.
2、_______ classroom is big and clean.
3、How many _________? There is one library.
4、Bonnie _________a dog. The dog is hot.
5、I like __________ basketball.
6、________ your friends tall? Yes.

He____ going to play football. (   )

A．are

B．is

C．was

I ____ Lucy. ( )

A．is

B．am

C．are