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6 Choose the correct words.
7 You don't have to have to go shopping. There's enough food in the
2 Your clothes are dirty. You must / mustn't change them.
3 We don't have to / have to pay now. We can pay when we get there.
4 He shouldn't / has to talk to her like that. It's very rude.
5 During an exam you should /mustn't copy from other students.​