EX: Put the following into the passive voice 1.      They feed the seals at the zoo twice a day. The seals……………………………………………………. 2.      This house was built 100 years ago. They…………………………………………………… 3.      These artificial flowers are made of silk. They …………………………………………………. 4.      The lessons are being written by the students now. The students………………………………………………………… 5.       This job has to be done at once. He………………………………………………………………. 6.      The operation is going to be performed by French doctors. French doctors …………………………………………………………………. 7.      All the arrangements have been made. He………………………………………………………………….. 8.      The villagers will be invited to attend the meeting. He………………………………………………………………. 9.      Our salary is going to be increased. She………………………………………………………………. 10. When was this radio manufactured? When………they……………………………………………………………….. 11. Good progress has been made by John in his studies. John ……………………………………………………………………………. 12. They couldn’t be found anywhere. Noone…………………………………………………………………………….. 13. These boys aren’t taught by Mrs. Johns. Mrs. Johns ……………………………………………………………………… 14. Nothing had been moved until the police arrived. They……………………………………………………………………………. 15. Is mathematics taught in this school? ………He…………………………………………………………………………. 16.  the machinery wasn’t damaged by the accident. the accident …………………………………………………………………………… 17. Please wait here while your luggage is being examined. Please wait here while they……………………………………………………………………………. 18. The results of the contest are going to be announced. They…………………………………………………………………………….. 19. How are candles made? How ………they………………………………….. 20. He expected us to offer him a job. ……………………………………………… 21. They showed her the easiest way to do it. …………………………………… 22. The author has written a special edition for children. ………………………………………………………………….. 23. Judges used to carry sweet herbs as a protection against jail-fever. ………………………………………………………………… He wrote it with a matchstick dipped in blood. …………………………………………………………………….. 24. An uneasy silence succeeded the shot. ………………………………………………. 25. Did the idea interest you? ……………………………………………… 26. The lawyer gave him the details of his uncle’s will. 27. ………………………………………………………… 28. Beavers make these dams. ………………………………………………….. 29. They used to start these engines by hand. ………………………………………………………… 30. Most people opposed this. ……………………………………………………. 31. Students are doing a lot of the work. ………………………………………………………… 32. The Prime Minister  have opened the dry clock. ……………………………………………………………. 33. The closure of the workshops will make a lot of men redundant. ………………………………………………………………………. 34. Anyone with the smallest intelligent could understand these instructions. …………………………………………………………………………………… 35. We will not admit children under sixteen.                              Giúp tớ với, tớ cần gấp sáng mai :((