Объяснение:
1. Do you have to get home before 10:30?
2. We don't have to do exercise 4 for homework.
3. The teacher has to arrive at school before 8:00
4. Peter doesn't have to take the rubbish out at weekends.
5. Does your dad have to take the train to work?
6. At university my sister doesn't have to get up early ever day.
