2 Complete the sentences with mustn't or don't/doesn't have to.

Sentence Completion

• 1. He's a brilliant student - he doesn't have to work hard to get good marks.
• 2. You can stay up late, but you mustn't make a lot of noise and wake up your sister.
• 3. We mustn't forget the name of our hotel.
• 4. She always pays by credit card so that she doesn't have to carry a lot of money with her.
• 5. You mustn't tell Jack about the party - it's a secret!
• 6. The bus leaves at 9 a.m. exactly, so you don't have to be late.
• 7. We don't have to wear a uniform to school, but we wear jeans or trainers.