I. Change the following sentences into the passive. 1. People grow rice in many countries in the world. => 2. Graham Bell invented the telephone many years ago. => 3. They have used this car for many years. 4. Lan practices English every day. 5. They will take the garbage out of the city. 6. Mary sent me this letter two days ago. 7. People make compost from vegetables. 8. You must finish this work before Sunday. %3D> => 9. She hasn't used this bicycle for a long time. 10. I saw a strange man in my garden yesterday. => 11. They clean the floor every morning. 12. They can't solve the problem soon. 13. They break the glass into small pieces. 15. They made these cars in the USA. 16. People have used the Internet all over the world. => 17. We planted many trees in the school garden. => 18. Someone has taken my books away. 19. He didn't help me with my homework. 20. We have learnt English for three years. => => => 21. My father often reads books before bedtime . => 22. Lan bought some comic books for her brother. => 23. My sister received a letter yesterday. =3> 24. She can solve the problem in just 2 minutes 25. Nowadays people use electricity for lighting. => 26. I have heard her sing this song several times. 27. People saw him steal your car. 28. The teacher is watching the work. 29. He won't let you do that silly thing again. 30. People don't make the children work hard. 31. They made him work all day. 32. People don't make the children work hard 33. The terrorists made the hostages lie down. 34. Police advise drivers to use an alternative route. => 35. She helps me to do all these difficult exercises. => 36. Toshico had a mechanic repair her car 37. Ellen got Marvin to type her paper. => => => =D> 3D> => => => => 38. We got them to paint our house last week. 39. Dr Byrd is having the students write a composition. 40. Maria is having her friend cut her hair now. => 41. They declared that she won the competition. => 42. She reported that the flowers were killed by frost. => 43. They think that he has died a natural death. => =>