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　　二.按要求改写句子

　　1. The boy is playing basketball.

　　否定句：____________________________

　　一般疑问句：_________________________

　　肯定回答：______________________否定回答：______________________

　　对"is playing basketball"提问：__________________________

　　对"The boy"提问：__________________________

　　2. They are singing in the classroom.

　　否定句：____________________________

　　一般疑问句：_________________________

　　肯定回答：____________________否定回答：______________________

　　对"are singing"提问：__________________________

　　对"in the classroom"提问：__________________________

　　三. 用现在进行时完成下列句子

　　1. What _________ you __________ (do)?2. I _____________ (sing) an English song.3. What ________ he ____________ (mend)?

　　4. He ______________ (mend) a car.

　　5. ______ you __________ (fly) a kite? Yes, _____________.

　　6. ______ she ___________ (sit) in the boat?

　　7. ______ you _____________ (ask) questions?

　　8. We _______________ (play) games now.

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

　　10. It's nine o'clock. My father_______________(work) in the office.

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

　　12.   __________he__________(clean) the classroom? No, he isn't. He____________(play).

　　13. Where is Max? He___________(run) on the grass.

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

　　Oh, Mary_____________(sing) there.

　　四。选择题

　　1. Who _____ over there now?

　　A. singing   B. are sing   C. is singing   D. sing

　　2. It's eight o'clock. The students _____ an English class.

　　A. have   B. having   C. is having D. are having

　　3. Listen! The baby _____ in the next room.

　　A. crying   B. cried   C. is crying    D. cries

　　4. Look! The twins _____ new sweaters.

　　A. are wearing   B. wearing   C. are wear D. is wearing