Complete the sentences with must or mustn't.
1. She.......
feed the animals at the zoo. It's ......
be quiet in this library.
take photos. It's bad for the paintings.
3. We.......
4. They
eat inside the gallery.
5. He.......
leave before 6 o'clock or you'll be late.
6. You......
throw rubbish in the bin.
7. I ......
talk in the theatre.​

1. She mustn't feed the animals at the zoo.

2. You must be quiet in this library.

3. We mustn't take photos. It's bad for the paintings.

4. They mustn't eat inside the gallery.

5. He must leave before 6 o'clock or you'll be late.

6. You must throw the rubbish in the bin.

7. I mustn't talk in the theatre.

Объяснение:

1. mustn't

2. must

3. mustn't

4. mustn't

5. must

6. must

7. mustn't

must - действие обязательно должно быть выполнено

mustn't - запрещение делать что - либо, это на будущее