Complete the sentences with mustn't or don't/doesn't have to 1. be quiet! the baby's asleep, so we make any noise. 2. my older sister's got a job now, so she ask our parents for pocket money. 3. the homework's easy, so you help me. 4. don't talk like that, josh! you be rude to your friends. 5. you borrow my things without asking me! 6. my grandfather's 75, so he pay to travel on the bus. 7. it's a test, so you look at other people's work.