1. Why does he have to watch his diet?
2. How long did he have to stay
in hospital?
3. Whom will you have to show the
way?
4. Where did we have to change trains?
5. Why don't they have to pay for the books?
6. Whom does all traffic
have to make way for?
7. How does she have to drink this
medicine?
8. Why didn't we have to take food with us?