I. Chuyển các câu sau sang câu bị động 1. Mary types letters in the office. …………………………………………………………………… …………….. 2. His father will help you tomorrow. …………………………………………………………………… …………….. 3. Science and technology have completely changed human life. …………………………………………………………………… …………….. 4. Peter broke this bottle. …………………………………………………………………… …………….. 5. They are learning English in the room. …………………………………………………………………… …………….. 6. Nothing can change my mind. …………………………………………………………………… …………….. 7. No one had told me about it. …………………………………………………………………… …………….. 8. I don’t know her telephone number …………………………………………………………………… …………….. 9. My students will bring the children home. …………………………………………………………………… …………….. 10. They sent me a present last week. …………………………………………………………………… …………….. 11. She gave us more information. …………………………………………………………………… …………….. 12. The chief engineer was instructing all the workers of the plan. …………………………………………………………………… …………….. 13. They can’t make tea with cold water. …………………………………………………………………… …………….. 14. Somebody has taken some of my books away. …………………………………………………………………… …………….. 15. They will hold the meeting before May Day. …………………………………………………………………… …………….. 16. They have to repair the engine of the car. …………………………………………………………………… …………….. 17. The boys broke the window and took away some pictures. …………………………………………………………………… …………….. 18. People spend a lot of money on advertising every day. …………………………………………………………………… …………….. 19. Teacher is going to tell a story. …………………………………………………………………… …………….. 20. Mary is cutting a cake with a sharp knife. …………………………………………………………………… …………….. 21. The children looked at the woman with a red hat. …………………………………………………………………… …………….. 22. They have provided the victims with food and clothing. …………………………………………………………………… …………….. 23. People speak English in almost every corner of the world. …………………………………………………………………… …………….. 24. You mustn’t use this machine after 5:30 p.m. …………………………………………………………………… …………….. 25. After class, one of the students always erases the chalk board. …………………………………………………………………… …………….. 26. Do they teach English here? …………………………………………………………………… …………….. 27. Will you invite her to your wedding party? …………………………………………………………………… …………….. 28. Has Tom finished the work? …………………………………………………………………… …………….. 29. Did the teacher give some exercises? …………………………………………………………………… …………….. 30. Have they changed the window of the laboratory? …………………………………………………………………… …………….. 31. Is she going to write a poem? …………………………………………………………………… …………….. 32. Is she making big cakes for the party? …………………………………………………………………… …………….. 33. Are the police making inquires about the thief? …………………………………………………………………… …………….. 34. Must we finish the test before ten? …………………………………………………………………… …………….. 35. Will buses bring the children home? …………………………………………………………………… …………….. 36. Have you finished your homework? …………………………………………………………………… …………….. 37. Why didn’t they help him? …………………………………………………………………… …………….. 38. How many games has the team played? …………………………………………………………………… …………….. 39. Where do people speak English? …………………………………………………………………… …………….. 40. Who are they keeping in the kitchen? ……………………………………………………………………