1. I don't think we've got enough seats for this evening's show.
2. You don't have to bring food. We've got enough.
3. I haven't seen him for weeks.
4. Must I go too? No, you don't have to if you don't want to.
5. He wants to wear a jeans at his interview. I think he should wear a suit.
6. What would you do if you were attacked by a tiger?