--- What are you doing now?  (   )
--- I am _________.

A．sleep

B．to sleep

C．sleeping

D．sleeps

用所给动词的适当形式填空。
1. The little boy wants _________(eat) a big apple now. So please_______ (bring) one to him. 
2. Tom often_________(go) to school at 7:00. Now, he________   (take) a taxi.
3. --- ______She_____( write) to her friends on Sundays?
---Yes, now she________  (write) a letter now.  
4. ---Where _______Mr. Black usually_________(run)?
---In the park. Now, he__________ (run) in the neighborhood.

He is ___________. (    ) .

A．play basketball

B．to going to bed

C．playing games

用词的适当形式填空。
【小题1】Asia has the ________(large) population.
【小题2】Africa is the _______ (hot) continent in the world.
【小题3】There was a little note. It _____ (say), “Thank you.”
【小题4】Santa Claus is_______ (finish) his travels around the world.
【小题5】There are all ______ (kind) of cakes in the restaurant.

按照例句写出相应的形式。
例：clean the room I am cleaning the room.
1. stand there
_______________________
2. talk about the picture   
_______________________
3. look at the bird   
_______________________