C Choose the correct words. 1 You mustn't/ shouldn't leave your motorbike there. It isn't safe. 2 He's lucky because he mustn't/ doesn't have to wear a school uniform. 3 We mustn't/ don't have to use mobile phones. It's against the rules. 4 I have to / should walk to school because there isn't a bus. 5 Young people must/ should go to school until the age of fifteen. It's the law. 6 You mustn't/ don't have to cheat in exams.
ПОМАГИТЕ ПЖ​