Modals: have to/don't have to/ must/mustn't.

1 Complete the sentences with must/mustn't.

1. The doctor says she must lose weight or she might become ill.
2. | sprained my ankle last week and I .............. do sport for a month.
3. You ..... pick up the ball - it's against the rules. 4. You......... ... eat less fried food.

2 Complete the sentences with has to, doesn't have to, have to, don't have to.

1. I have to warm up before the game.
2. Lisa........ go to yoga tonight. There's no class on Fridays.
3. You......... buy a baseball glove-you can borrow mine.
4. John ....... see the coach later to talk about the game.
5. We ........ play hokey if you don't want to.

3 Complete the sentences so that they are true for you. Use the modals from the list to help you.

have to must don't have to mustn't
1. Before I do sports, I must warm up.
2. This afternoon, I ........
3. Before dinner, I .......
4. Next week, I .......​​