1. Choose the right option to complete the sentences. In some sentences both answers may be correct.

1. We (don’t have to/mustn’t) go to work tomorrow. It's a holiday.

2. I'm late for a meeting. I (have to/must) go now.

3. Don’t worry about the bill. We (can/must) pay by credit card.

4. There's a red flag. We (can’t/mustn’t) go swimming.

5. You (mustn’t/don’t have to) touch the cooker. It's hot.

6. You (can/have to) drive on the left in the UK.

7. You (have to/must) wear a seatbelt when you travel by car.

8. I (can’t/have to) send personal emails from work.