You _____ run in the classroom.
mustn't
You _____ listen to Miss Lilly.
must
You ____ look left and right before you cross the street.
must
You _____ go to bed late.
mustn't
You _____ eat in your bed.
mustn't
You _____ help your mum at home.
must
You _____ listen to your parents.
must
You _____ fight with your friends.
mustn't
You _______ do your homework.
must
You _____ watch TV after 10 o'clock.
mustn't
You _____ listen to loud music in the park.
mustn't