Choose the correct item. 1 You must / mustn't brush your teeth after meals. It's good for your teeth. 3 2 Shall / Have I make you a cup of coffee? You have to / don't have to wear a uniform at our school. You can wear anything you like. 4 You must / mustn't swim here. It's dangerous. 5 You must / mustn't have a bath. You are so dirty! 6 He has to / doesn't have to get up early tomorrow. His flight is at 6:30 in the morning! 7 Have / Shall I make you a sandwich? 8 Have / May I go out, Miss?