2. Use have to/don't have to/needn't

1. He **has to** keep the room tidy. 2. You **don't have to** buy tomatoes, we have lots of them. 3. The car park is free here, so you **don't have to** pay for it. 4. You **don't have to** speak louder, I can hear quite well. 5. We have got plenty of time, so we **don't have to** hurry. 6. They **don't have to** wear a school uniform on Fridays, but they usually do.