Fill in the gaps. Use mustn't or don't / doesn't have to.1. You ... get up early on holidays.2. This window is broken.

1. You don\'t have to get up early on holidays. 2. This window is broken. You mustn\'t open it. 3. Mr. Brown is a very rich man. He doesn\'t have to work. 4. It\'s very cold. You mustn\'t go out today. 5. You don\'t have to clean your room today. You can do it tomorrow. 6. Your dog mustn\'t sleep in your bed.