Complete the sentences with must or mustn't. g. You mustn't talk in the theatre.

g. You mustn't talk in the theatre. - We mustn't eat inside the gallery! - You must be quiet in the library. - We mustn't feed the animals at the zoo. It's dangerous. - Children must stay close to their parents. - We mustn't take photos. It's bad for the paintings. - You must leave by 6 o'clock or you'll be late.