have to must

During a lesson you _____ be quiet.

• must

• mustn't

During a lesson you ______ sit on your desk.

• must

• mustn't

You ______ listen to your parents.

• must

• mustn't

The children _____ go to school.

• must

• mustn't

You ______ use your mobile phone at school.

• must

• mustn't

I ______ tidy my room.

• has to

• have to

My mum _____ cook dinner.

• have to

• has to

John ______ walk the dog.

• have to

• has to

When we handle raw food, we _____ wash our hands.

• have to

• don't have to

• has to

• doesn't have

The students ___________ arrive to class on time.