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 months old so 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 light 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.