按要求改句子。
1. The students often play volleyball.（用now改为现在进行时）
The students __________ __________ volleyball now.
2. The boys are playing football.（改为一般疑问句）
__________ the boys __________ football?
3. The teachers are playing basketball.（对划线部分提问）
__________ are the teachers __________?
4. Are the girls doing the high jump?（作肯定回答）
__________, they __________.
5. they, watching, are, jump, the, long （连词成句）
______________________________________________________

---What are you doing? (    )
---______.

A．You are drawing pictures.

B．I go home.

C．I’m talking.

Be quiet, please. David ________ his homework now. (   )

A．do

B．doing

C．is doing

—What are you doing?（　　）
—We _____.

A．is playing

B．am talking on the phone

C．are playing

D．talking on the phone

Is she ________ (listen) tomusic? Yes, she is.