Answer: The teacher doesn't have to go to work today because it's Sunday.
Answer: The builder has to build the wall next week or his customer will be unhappy.
Answer: The patient doesn't have to stay in hospital because she wasn't feeling sick.
Answer: Does the cleaner have to wear white shoes for the job in the hospital tomorrow?
Answer: Do you have to go to university before you could teach art?
Answer: You don't have to walk to school today; I will drive you there!
Answer: Waiters have to be careful because dishes break easily.
Answer: Pete had to work in a factory when he was younger and he didn't like his job.