Exercise 12. Complete the sentences with must, have to, can, be to.

a

1. I'm afraid you ... come in here if you are under 18. It's against the law.

2. I ... remember to phone Sue. It's her birthday.

3. You ... take this medicine if you feel better.

4. You ... smoke in the corridor but not in the classrooms.

5. I've told you a hundred times you ... cross the road without looking.

6. If you don't want to fall ill you ... drink cool water.

7. The phone is ringing. I ... answer it at once.

8. You ... drive on the left in Britain.

b

1. It's no use going to the shop; it ... be already shut.

2. These newspapers ... be found everywhere in the bookstores.

3. The matter is urgent. You ... spare me a few minutes.

4. She and Carton ... have met there, they both had an order to view the same house.

5. It was left in the will that Rock ... be my trustee.

6. Sooner or later you will ... earn some money to keep body and soul together.

7. Every man of ambition ... fight his century with its weapons.

8. The car ... be parked in the parcking area.