1)you … put posters in the room. it’s forbidden. 1.must 2.mustn’t 3.can’t 2)you … cook your meals in the room. it is not allowed. 1.must 2.mustn’t 3.can’t 3)you … wear a seatbelt when you are in a car. that’s the rule. 1.must 2.mustn’t 3.can’t 4)there isn’t much time. we … hurry. 1.must 2.mustn’t 3.can’t 5)please, don’t make so much noise. we … wake the children. 1.must 2.mustn’t 3.can’t