3. Jim is singing.(改为否定句)

　_______________________________________.

2. Tom is working.(改为一般疑问句)

　_______________________________________ ?

1. They are cleaning the window.(改为一般疑问句)

　_______________________________________?

6. Listen, who____________(sing) in the music room?

5. Where is Mike? He___________(run) on the grass.

4. _______ he ________(clean) the classroom? No, he isn’t. He_____(play).

3. Look, the boy____________(put) the rubbish into the bin.

2. It’s nine o’clock. My father_______________(work) in the office.

1. What are you _________(do) now? I ___________(eat) bread.

8. ____ you ___ the window? -Yes, I am.

　A. Do, clean 　B. Is, cleaning　 C. Are, cleaning 　D. Do, cleaning

二 用动词的适当形式填空