Grammar: Fill in must, or mustn't.

Grammar: Fill in must, or mustn't.

A.G. Baillie Secondary School Rules

1. You must run in the halls at school.
2. You mustn't be mean to your classmates.
3. You must treat your teachers with respect.
4. You must do your homework every night.
5. You mustn't talk in class.
6. You mustn't eat or drink at your desk.
7. You must be on time.
8. You must always wear your school uniform.