一（1）Do they play football every day?No,they don't.
（2）What do they do every day?
（3）They don't play football every day
二(1)Does your brother often go to school by bike?No,he doesn't
(2)How does your brother often go to school?
(3)My brother doesn't often go to school by bike
三
Did you' have six classes yesterday?No,I don't
How many classes Did you have yesterday?
I didn't have six classes yesterday.