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.