Complete the sentences with the correct form of have to / don't have to or must/mustn't. a Sophie .............................. get up early tomorrow. She's catching a train at 6 am. b Jerry .............................. go to Mary's party, but he can go if he wants to. c You .............................. smoke in the school. It's against the rules. d William .............................. work harder if he wants to pass his exams. e 'Do I .............................. show my passport at the airport?' 'Yes, you do.' f You .............................. be 16 before you can get married.