Từ câu chủ động viết lại thành câu bị động 17. Did you send her a present yesterday? 18. The builders were building the new bridge when we came. 19. He will open the shop tomorrow. 20. A famous writer wrote that book. 21. Jack won’t pay the bill. 22. Someone built this house in 1990 23.My sister cleans the room everyday. 24.A lion killed Mary’s dog last week. 25.Does Tom always do his exercises carefully? 26.Her mother doesn’t cook meals in the kitchen. 27.The teacher punished Tom because of his laziness. 28.Did Henry sing English songs beautifully? 29.About thirty million people are watching this program. 30.No-one has ever met him before. 31.People used oil-lamps years ago. 32.When did they open that hospital? 33.No-one has made any comments on that event. 34.What do they call the new hotel? 35.We must wash this kind of cloth in warm water only. 36.People consume gas faster than they produce it. 37.Nobody has seen him anywhere this week. 38.Did anyone see you come in? 39.I remember that my father took me to town to see that film. 40.Someone told him he could not take the examination. 41.The hosts gave us a very warm welcome. 42.Has anyone ever taught you how to behave? 43.Thieves broke into the house. 44.They have awarded the best student a scholarship. 45.They made him stay behind after class. 46.They built that old red house in the year 1822. 47.They have already announced the result of the exam. 48.They have sold thousands of CD machines since 1983. 49.Someone might find a solution to the problem soon. 50.Our hosts treated us very kindly last Saturday. 51.They told me that they could borrow some money. 52.He made her cry yesterday. 53.Who wrote this letter? 54.What did they pay you for doing the job? 55.Someone should tell him never to do it again.