Must or Have to

You … smoke here. There is a ‘No Smoking’ sign by the door.

• a) must

• b) mustn’t

• c) don’t have to

When the traffic light turns red, you … stop your car.

• a) must

• b) mustn’t

• c) don’t have to

I have an important exam tomorrow. I … study hard for it.

• a) must

• b) mustn’t

• c) don’t have to

Please be quiet! This is a library. You … talk loudly.

• a) must

• b) mustn’t

• c) don’t have to

We … take a train to New York. We could take a plane. Which is better?

• a) must

• b) mustn’t

• c) don’t have to

In the United States, you … drive on the right side of the road.

• a) must

• b) mustn’t

• c) don’t have to

Remember to give me a phone call when you arrive. You … forget!

• a) must

• b) mustn’t

• c) don’t have to

There are lots of things on the menu. You … order just a hamburger.

• a) must

• b) mustn’t

• c) don’t have to

I have a credit card. I … pay with cash.

• a) must

• b) mustn’t

• c) don’t have to

My doctor says that I … get exercise to stay healthy.

• a) must

• b) mustn’t

• c) don’t have to