You ____________ shout in class.
must
mustn't
You ___________ brush your teeth everyday after dinner.
must
mustn't
You ___________ stop when the light is red.
mustn't
must
If you ride a bike, you ___________ be careful.
must
mustn't
You ___________ help your family.
mustn't
must
You ____________ be quiet in the library.
mustn't
must
You ___________ jump on a baby.
mustn't
must
You ___________ eat a lot of hamburgers, if you want good health.
must
mustn't