I. 1C - 2C - 3B - 4C - 5A - 6A - 7A - 8C - 9D - 10B
II. 1. do your children go
2. doesn't have
3. does your class start
4. Are you
5. watches
6. don't read
7. is - plays
8. Do your students play
9. are you doing - am unloading
10. Does your mother walk
11. don't play
12. is working
III.
1. What time do you have breakfast?
2. Which grade is he in?
3. Where is her house?
4. How old is your brother?
5. What do they do in the morning?
6. How many chairs are there in his room?
7. When does she have Literature?
IV.
1. dangerous
2. pollution
3. beautiful
4. nationality
5. careful