Ex.3 Choose the correct modal verb

Ex.3 Choose the correct modal verb

1. You mustn't pay your rent. That's the rule.
2. You mustn't eat in the classroom. It's forbidden.
3. You can't have any pets in this house. It's not allowed.
4. You mustn't go to the doctor. You look very ill.
5. You mustn't go to school. That's the law.