Choose the correct verb

1. You
   [mustn't|don't have to] be late. It's an important meeting.
2. [Do I have to|Needn't I] finish it today?
3. He
   [has to|can't] do his homework every day.
4. He's ill. He
   [must|have to] see a doctor.
5. You
   [must|needn't] stop at the red light.
6. You
   [mustn't|don't have to] eat in the classroom. It isn't allowed.
7. He can go out but he
   [need|has to] be back by 10:00.
8. You
   [mustn't|don't have to] water the plants. I'll do that.
9. Pilots
   [have to|can't] wear a uniform.
10. You
    [mustn't|needn't] wear a sweater. It's warm outside.