Fill in mustn't or don't/ doesn't have to.
1. I__go to school on Sundays .
2. We__make noise. My little sister is asleep.
3. I__spend much money.
4. I__do this exercise in writing.
5. He__forget to mail this letter tomorrow.
6. You__ come to the party.
7. You__to eat it if you don't like it.
8. They__to study music this year. (Перевести я могу сама)