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

A．sleep

B．to sleep

C．sleeping

D．sleeps

用所给的动词适当形式填空。
1. We are ____ (play) ping-pang.
2. What are they ______ (do)?
3. They ______(be) playing badminton
4. I ______(be)______(play) tennis.

用所给词的正确形式填空。
【小题1】Listen! Someone ______ (sing) in the music room.
【小题2】Why ______ (do) they like running?
【小题3】He ______ (not like) playing basketball. He ______ (like) playing tennis.
【小题4】She sometimes ______ (go) to school on foot.
【小题5】My hobby is skating. Is skating ______ (you) hobby?
【小题6】I often help my mum ______ (clean) the windows on Sundays.

Read, choose and correct：I'm think nothing.    ___________

用所给动词的正确形式填空。
1. Look! The boys ____________________ ( play) games in the park.
2. It’s 8 am. The students ___________________ (have) an English class.
3. Don’t talk. Your father _________________ (sleep).
4. The girl ________________ (not sing). She is dancing.
5. Are they _______________ (have) breakfast?