1. They must do as they are told.
2. I suppose I must put on my other shoes for the party.
3. I can't leave without paying.
4. They must return all the money.
5. You might have given them a call to say that you were not coming.
6. I was so hungry that I might have eaten the whole chicken up.
7. "Must I take an umbrella?" "Yes. It looks like rain."
8. Were you able to finish the work?
9. The situation couldn't be worse.
10. Could you come a little later?
11. Can you have written it yourself?
12. It can't possibly happen to me.
13. In my mind I went over the possible occasions when I might have met him.
14. He may not have wished to speak.
15. She never spoke of her childhood, and there must have been some reason for it.
16. But really I can't possibly walk further.
17. "He can rest in my office," said Mr Bolt.
18. Nora led the boy to her room. I could hear them talking there.
19. "You mustn't minimize the danger," he said.
20. I shall be able to write them tomorrow.
21. No one could have done more than you did.
22. Nick was a son that any parent might have been proud of.
23. I think he has fallen in love with you because he must never have met anyone quite like you.
24. I don't think I shall go out today. I may just as well sit in the arm-chair at the fire in this weather.
25. You might have done something about it.
26. After all, one can't help admiring a man whose principles are so high.
27. You can do what you like. 1
28. "I don't see what else I could have done," he said.
29. His mother is again in hospital. She must be seriously ill.
30. There was no one among them to whom I could turn for help.
31. I can't see how you can have been so foolish.
32. I couldn't help thinking that Miss Grey had given herself away by saying that.
33. He moved so quietly that he could not have disturbed the lightest sleeper.
34. Where are my spectacles? No, they are not here. I must have left them at home.
35. Must I stay here all day?
36. He asked if he could rely on me.
37. He asked if I could take his class for the next period.
38. When the child is so ill you must feel wretched.
39. You must get him here with all his stuff.
40. "This must be unlike your home," said Bart.
41. I said he could take my car.
42. I couldn't care less.
43. She knew what he must be feeling.
44. He can't be more than three or four years older than you.
45. The weather may change for the better yet.
46. She can't be unaware of it.
47. I won't be able yet to give you a definite answer on Monday.
48. They may not have come yet.
49. They may be still investigating the matter.
50. They may have been at the party but I didn't see them.
51. Who can have turned the light on in my room?
52. Your father is very angry. What can you have done again?
53. It's quite dark. I must have been sleeping a long time.
54. He will probably give us a call soon.
55. Can he have told you to come here?
56. "Where is my key?" "You must have lost it." "I can't have lost it. I may have left it in the pocket of my coat."
