Ответ:
1.You can watch a film at the cinema.
2.You can do sports at the gym.
3.You can find a book at the library.
4.You can see fish at the aquarium
5.You can see a play at the theatre.
Exercise 4
1.mustn't
2.have to
3.can't
4.can't
5.must
Объяснение: