1) You ... have a party in here. It's not allowed. a) must b) can't 2) He ... park his car here. It's not allowed. a) must b) mustn't 3) You ... do your homework. That's the rule. a) must b) can't 4) You ... wear a seatbelt when you're in a car. That's the law. a) must b) can't 5) You ... eat in the library. It's forbidden. a) must b) mustn't

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