Have to / Don't have to / Must / Mustn't

In a hospital, you _________ observe silence.

• mustn't

• don't have to

• must to

• must

Brian _______ wear a suit to work, it's optional.

• doesn't have

• doesn't have to

• don't have to

• has to

______ she ______ go to the supermarket today?

• Does - have

• Does - has to

• Does - have to

• Do - have to

You _______ smoke in an airplane.

• mustn't

• mustn't to

• don't have to

• must

We ______ wash our hands several times a day.

• don't have to

• must

• mustn't

• have

Eleanor ______ stay in bed because she is sick.

• must

• must to

• doesn't have to

• mustn't

They ________ wear a uniform at school. It's a rule.

• have

• mustn't

• don't have to

• have to

What the best sentence to describe it?

• You have to take pictures.

• You don't have to take pictures.

• You mustn't take pictures.

• You must take pictures.

Kate ______ wear make up to work. She's a flight attendant.

• has to

• have to

• doesn't have to

• don't have to

Children _______ to strangers.

• mustn't talk

• must talk

• don't have to talk

• have to talk