1. You shouldn't wear white or black on the first days of the new year
2. We should arrive on time
3. You should say "hi" when you meet old people
4. You should never offer the food in your plate for anyone
5. You should never touch children and adults' s head
6. You shouldn't try alcohol
7. I think you should go to the doctor
8. You shouldn't watch TV and use the INternet for a long time
1. have to follow 2. has to answer 3. will have to go
4. do we have to? 5. has to recycle 6. won't have to come
7. have to wear 8. will he have to do? 9. have to put
10. have to stop 11. do all the students have to take?
12. has to take 13. had to leave
