Fill in the gaps with must or mustn't

A.G. Baillie Secondary School Rules

1. You
   [ ] always wear your school uniform.
2. You
   [ ] be mean to your classmates.
3. You
   [ ] treat your teachers with respect.
4. You
   [ ] run in the halls at school.
5. You
   [ ] do your homework.
6. You
   [ ] eat or drink at your desk.
7. You
   [ ] talk in class.
8. You
   [ ] be on time.