Can

- Used to ask for permission.

- Express ability

Must

- When you think that

something is necessary

- You use mustn’t to tell

someone not to do

something.

USEFUL INFORMATION

Look at the picture. Then complete the sentences with:

must, mustn’t, can or can’t.

1. You _________ queue at the entrance for tickets.

2. You ________ eat or drink in the train.

3. You ________ see models of London, but you

________ touch them.

4. ________ you buy souvenirs?

5. You are only 100 cm. You _______ go on the roller

coaster.

6. You _________ sit on the ride.

7. You _________smoke in the café.

8. You _________ sit outside the café.

Can, Can’t/ Must, Mustn’t

Complete with can, can’t, must or mustn’t.

1. You ________ do your homework carefully.

2. ________ I use your phone?

3. I ________ do it for you if you like.

4. It’s getting late. We ________ go now.

5. You ________ drink too much at a party.

6. You ________ study your lessons every day.

7. You ________ be careful! You drive so fast!

8. It’s warm, so the children ________ swim today.

9. You ________ bring the umbrella because it is going to rain.

10. The boy ________ open the door because he hasn’t got the key.

11. You ________ spend so much money on sweets.

12. What ________ I have for lunch? Everything you like.

13. Today he ________ work in the garden because it is raining.

14. You ________ use my computer if you like.

15. You ________feed the animals more than once a day. It’s bad for them.

16. You ________ shout in the classroom.

17. You don’t know him very well but you ________ talk to him about it.

18. ________ I go to the disco? Yes, but you ________ come straight home.

19. You ________ go to the baker’s because I’ve got no bread.

20. The students ________ bring roller-skates into the classroom.

21. You ________ hurry up to catch the train.

22. ________ I leave the classroom? Yes, but you ________ come back soon.

23. We ________ make hotel reservations. There are lots of people on holidays.

24. “You ________ step on the grass here,” the policeman said.

25. I ________ make the beds every morning because my mother is ill.

26. You ________ eat with dirty hands.

27. Baby Bob is only six month old sop he ________ walk.

28. We ________ wash our hands before our meals.

29. You ________ look at the traffic lights.

30. ________ I borrow some money, please?

31. You ________ protect the trees. They are very important.

32. You ________ cross when the lights are red.

33. You ________ bring warm clothes because it’s very cold.

34. ________ they have some ice-cream for dessert? I’m afraid they ________

because there isn’t any.