Перефразируйте следующие предложения, употребляя модальные глаголы must, mау или can't.

1. I am sure you are tired: you have been working for hours. 2. Perhaps he visited the Hermitage when he was in St Petersburg last year. 3. I am sure it is аvery deep lake. 4. Probably that building in the distance is the station. 5. I don't believe you have lost you passport; probably you have put it into another bag. 6. Perhaps the girl was frightened. 7. Probably you left your textbook in the canteen. 8. I don't believe they will give up such а brilliant idea. 9. You look pale. Probably you are tired. 10. I don't believe that this boy is а good friend.