Question

1. It is a very busy road so you «must/don’t have to» cross carefully.
2. We were late for our flight, so we «had to/could» take a taxi.
3. You «mustn’t/don’t have to» go to the theatre to buy the tickets – you can buy them online.
4. You «don’t have to/ could» carry cash with you, they accept credit cards everywhere.
5. I missed my train, so I «can/had to» wait for the next one.
6. You «shouldn’t/ have to» go out tonight. You have your exam tomorrow!
7. I am sorry. I «can’t/mustn’t» come to your party on Saturday. I will have to help my granny.
8. I think London is a fantastic city. You «should/shouldn’t» visit it one day!
9. You «can’t/ must» be 16 or older to see this film.
10. When he was young, he «could/have to» play tennis very well.
11. If you study hard, you «will be able to/have to» pass your exams with good grades.
12. I like this room because you «can/must see» the lake from the window.
13. You «can’t/must» swim in this river, it is very dirty.
14. I am afraid, I don’t have enough money to go by plane, so I «will have to/will be able to» go by train.

Answer 1

1) must
2) had to
3) don’t have to
4) don’t have to
5) had to
6) shouldn’t
7) can’t
8) should
9) must
10) could
11) will be able to
12) can
13) can’t
14) will have to