1. Perhaps you left your umbrella in the bus.
2. Perhaps he went to the cafe to wait for us.
3. Perhaps it was Helen who rang you up. 4. Perhaps they came by plane. 5. Perhaps she had a very good English teacher. 6. Perhaps it was too cold for the children to go out. 7. It is possible that he took his children to the zoo. 8. Possibly they did not see us in the crowd. 9. Perhaps Robert used a dictionary. 10. Possibly Mary misunderstood you. 11. Perhaps Henry waited for us there. 12. Possibly Ann returned very late last night. 13. Possibly they have seen the new play. 1 4. Perhaps Nick has left his exercise-book at home.
. 494. , may.
1. Perhaps he is at home, but I am not sure he is. 2. It is possible that we studied at the same school, but I don't remember her. 3. Perhaps she was proud of her knowledge, but she never showed it to her classmates. 4. Perhaps there was a chance for him to win the match. 5. Perhaps Peter was as capable as the old workers, but he was given no chance to show his skill. 6. It is possible that your brother has never heard about this singer. 7. Perhaps she tried to enter the university, but failed. 8. It is possible that you asked the wrong people, that's why you didn't get the right answer. 9. Perhaps our friends will arrive here tomorrow. 10. Perhaps they will come home very soon: be ready. 11. Perhaps the question was too difficult for her. 12. Try this delicious drink: perhaps you will like it. 13. Why didn't Nick ring us up? It is possible that he forgot about it.
. 495. may might. , .
1.... I (to ask) you to take off your hat? 2. She asked me if she... (to turn) on the light. 3. I am afraid it... (not to stop) raining by the morning. 4. Don't scold her: the task... (to be) too difficult for her, that's why she made rather many mistakes. 5. If they'don't miss the train, they... (to arrive) in time. 6. Why isn't he here yet? What has happened? Oh, he... (to miss) the train. 7. He... (to do) very hard work. That's why he looks so tired now.
. 496. , may.
1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , . 9. , . 10. , . 11. , . 12. , . 13. , - . 14. ,
- . 15. , .
. 497. -, must - , , . - .
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1. You must be a fool to think so. 2. The work I must have been carried out in secret for quite a long time. 3. The question must be solved before we begin doing anything. 4. Mind, you mustn't spend all the money. 5. You must take a taxi if you want to catch that train. 6. You must tell your mother about it. 7. But she must have seen him! 8. Oh, John, think how she must be suffering! 9. Is she waiting? She must have been waiting for an hour. 10. "Oh, Auntie," he answered, "you mustn't talk like that." 11. And remember, you must come and see the baby as soon as you can. 12. You must go home now, Georgie.
. 498. , must.
E.g. Probably I left my textbook in the classroom. I must have left my textbook in the classroom.
1. Probably I left my bag in the canteen. 2. Probably you left your umbrella in the bus. 3. Probably Mary forgot to call me. 4. Probably mother took my umbrella. 5. Probably I have seen you before: your face is familiar to me. 6. Probably you left your exercise-book at school. 7. Evidently she has left the town. 8. Probably Mike has gone to the teachers' room. 9. Probably Tom and Nick are playing football. 10. Probably Helen has got a bad mark. 11. Evidently they have solved the problem. 12. Evidently the pupils have finished writing their composition. 13. Obviously he forgot to warn them. 14. Evidently the meeting was cancelled. 15. Evidently he forgot to send them a telegram. 16. Evidently there was something wrong with the tape-recorder.
. 499. , must.
1. You have been absent very long. I am sun you feel hungry. 2. Where are the children? -They are at the river with Nick. I am sure they an having a very good time. 3. He has probably worke' very hard to finish his book. 4. She is a very expe rienced doctor. I am sure she has been working at this hospital for at least fifteen years. 5. Look! Helen's windows are open. I feel sure she is at home. 6. The Smiths have always been great football fans. I am sure they are at the stadium watching the football match. 7. Probably they have changed the school programme. My granddaugh ter knows a great deal more than I did when I was her age. 8. It is probably a very difficult rule. 9. I am sure it is pleasant to spend summer in such a picturesque place. 10. You have probably read books of this author before. 11. I feel sure they are preparing a surprise for us. 12. These old legends were probably composed about a thousand years ago. 13. It is probably nine o'clock now. 14. He is very old. I think he is nearly eighty. 15. It is prob-ably time to go now.
