1. The workers clean these windows twice a week. 2. The workers gave the boss some flowers. 3. He had written three books before 1867. 4. The neighbour has told us the news. 5. They don’t deliver goods on Sundays. 6. They will pick up John at this office. 7. The old woman feeds the pigeons every day. 8. The mechanic can’t fix my car. 9. She shows the visitors the new house. 10. You shouldn’t throw litter on the ground. 11. The teacher asked a very difficult question at the oral exam. 12. First, we have to read the text and then, we have to do the exercises. 13. His parents promised Tom a hundred Euros if he passed the test. 14. Did they repair all the windows? 15. The news didn’t surprise us all. 16. Is the teacher correcting the exams right now? 17. Someone has sent John a mysterious letter. 18. Where did they find the book? 19. The maid was cleaning my hotel room when I came in. 20. Many people have seen a UFO in this area. 21. Have they watered the plants? 22. Do they make those shoes in Portugal? 23. The secretary has already sent all the documents to Mr. Smith. 24. They have offered Michael an excellent job in a British company. 25. My grandmother is baking a delicious cake. ​