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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.