Pre can have to must

Children _______ use phones at the lesson. (not allowed)

• don't have to

• mustn't

• have to

• must

Today we ________ make friends on the Internet.

• have to

• must

• can

• mustn't

You ________ smoke here.

• don't must

• don't must to

• don't have to

• mustn't

Children ______ watch this film without their parents,

• don't have to

• can't

• must

• have to

He _________ wake up early. He is a postman.

• can

• mustn't

• doesn't have to

• has to

We _______ help each other if we want to win.

• have to

• can

• must

• don't have to

________ they make a speech for our students?

• Can

• Must

• Have

• Mustn't

You ________ buy it if you don't like it.

• mustn't

• can't

• can

• don't have to

The children _______ give a performance in December. But they need some help.

• has to

• have to

• can't

• don't have to

You ______chew a gum in the class.

• have to

• don;t have to

• mustn't

• must