must, have to, don't have to, can, can't

At our school we __________ wear a uniform

• have to

• has to

• can't

You ________ forget your umbrella. It’s going to rain

• can

• must

• don't have to

Students _________ listen to the teacher or they won’t understand.

• must

• has to

• can

We __________ leave now or we’ll miss the plane

• must

• can't

• don't have to

I _________ wear glasses because I can’t see very well.

• can

• have to

• has to

You __________ go shopping today. We don’t need anything.

• don't have to

• doesn't have to

• can't

You __________use a mobile phone in class.

• don't have to

• mustn't

• can't

In Britain you __________ drive on the left.

• must

• has to

• can

We ___________ feed the animals in the zoo.

• mustn't

• can't

• don't have to

Doctors sometimes ___________ work at the weekend.

• can

• mustn't

• don't have to