请帮我解答现在进行时的习题

请帮我解答现在进行时的习题
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.
一.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：__________________________
3.仿照例句造句:
Model:read a book
--What are you doing?
--I'm reading a book.
1.read a new book
______________________________________
______________________________________
2.clean the blackboard
______________________________________
______________________________________
3.she,the window,open,now.(用现在进行时连词成句.)
______________________________________
4.The birds are singing in the tree.(就划线部分提问)
______________________________________
5.is,who,the window,cleaning?(连词成句)
______________________________________
6.The children are playing games near the house.(就划线部分提问)
______________________________________
7.She is closing the door now.(改成否定句)
______________________________________
8.You are doing your homework.(用“I”作主语改写句子)
______________________________________
9.they,the tree,sing,now,under.(用现在进行时连词成句.)
______________________________________
10.The Young Pioneers are helping the old woman.(改成一般疑问句)
______________________________________