Ответ: 1. Walking along the street I saw several destroyed houses.2. It was an exciting incident. No wonder she spoke about it in an excited voice.3. Sitting near the fire, he felt very warm.4. Having found a hotel, we looked for somewhere to have dinner.5. The frightened child could not sleep all night – so frightening was the tale.6. Being unemployed, he hasn’t got much money.7. I don’t know what was in the burnt letter. I didn’t read it.8. Looking out of the window, he saw his mother watering the flowers.9. The house surrounded by tall trees was very beautiful.10. The wall surrounding the house was very high.11. Translated by a good specialist, the story preserved all the humour of the original.12. Selling fruit, he looked back from time to time, hoping to see his friends.13. Having sold all the fruit, he went to see his friends.14. Entering the room, she turned on the light.15. Having arrived late, we missed the train.16. Jim hurt his arm while playing tennis.17. The lost book was found at last.18. Not wishing to discuss that problem, he changed the conversation.19. A word spoken in time may have very important results.20. The students speaking good English must help their classmates.