一、1、coffee
2、milk
3、Junk food
4、 chocolate
5、drinking
二、1、for
2、How
3、often
4、Do
5、never
6、eat
7、for
8、how
9、many
10、enough
三、1、How often do you eat fruit？
2、How many hours does she sleep every day？
3、Do you eat a lot of junk food？
4、What does your brother usually do？
5、Do you think we should often drink milk？
四、1 - 5 D B C C B