I. Say that in your opinion these events can’t happen.
•E.g. This old bracelet was found in Africa. This old bracelet can't have been found in Africa. 1. This car was produced twenty years ago. 2. These photographs were taken in the north. 3. This tape recording was done last week. 4. James was given an excellent mark in history. 5. Ann was given an excellent mark for her geometry test. 6. This house was built at the beginning of this century. 7. This tower was built in the 9th century. 8. This book was written by a very good writer. 9. This film was made by a very good director. 10. This play was written by a very clever playwright. 11. This film has been shot in a fortnight. 12. This book was translated into Russian in the 19th century. 13. This castle was built in the 15th century. 14. This picture was painted by an Italian artist. 15. This computer was built ten years ago.
II. Insert: somebody, anybody, nobody, everybody.
1. Don't tell ... about it. It's a secret. 2. Life is tough! ... has problems. 3. ... has eaten all the ice cream. That's terrible! ... will be able to have it for dessert tonight. 4. I think, ... in our class is honest. That's why we trust ... . 5. If you look in the yellow pages, I am sure you'll find ... who can fix your TV. 6. I am not a perfectionist. ... is perfect in this world. 7. Is there ... in the office? 8. ... needs good friends. A friend in need is a friend indeed. 9. Has ... in this group got a dictionary? 10. ... left a magazine in our classroom yesterday. 11. The question was so difficult that ... could answer it. 12. I am afraid I shan't be able to find ... in the office now: it is too late. 13. ... knows that water is necessary for life. 14. Is there ... here who knows French? 15. You must find ... who can help you. 16. ... knew anything about America before Columbus discovered it. 17. I saw ... in the train yesterday who looked like you. 18. There is ... in the next room. I don't know him. 19. Please tell us the story. ... knows it. 20. Is there ... in my group who lives in the dormitory? 21. Has ... here got a red pencil? 22. ... can answer this question. It is very easy. Petrov lives on the third floor. 8. They have some English books. 9. There are some tall trees in front of their house. 10. Peter has something in his box. 11. There are some parks in this town. 12. There are some good bookshops in our district.