Modals of Obligation/Prohibition/Advice

You____________ take vitamin pills if you eat enough fresh fruit and vegetables.

• have to

• must

• don't have to

• should

We _______ hurry. We have a lot of time.

• don't have to

• have to

• must

• mustn't

It is forbidden to enter the room.

• You can enter the room.

• You mustn't enter the room.

• You have to enter the room.

• You don't have to enter the room.

You don’t need to study now.

• You have to study later.

• You mustn't study now.

• You must study now.

• You can study later.

You ________ touch any food without washing your hands first.

• must

• should

• shouldn't

• have to

Slow down or you are going to have an accident. You ________ drive so fast!

• shouldn't

• don't have to

• have to

• should

To be a pilot, you ____ to have excellent vision.

• must

• have

• should

• shouldn't

You ______ cross the road without looking first. It's dangerous.

• don't have to

• have to

• mustn't

• should

You ______ do more exercise. You don't look very healthy.

• don't have to

• mustn't

• shouldn't

• should

Time gave me a letter to send. I ______ remember to mail it.

• must

• mustn't

• don't have to

• should