Zakreśl właściwą odpowiedź.

1. I want to be the best student at our school, so I have to / must learn a lot.
2. If you attend a music school, you have to / must play a musical instrument.
3. We have to / must buy a ticket to go to this concert. It's not free.
4. I don't have to / mustn't get up today. It's Sunday.
5. You can't / don't need to enter the stage whenever you want. Wait for the signal.
6. You can / must meet at the cinema around 7.00. Is that OK with you?