chuyển thành dạng bị động :
22. A committee of experts haven't examined the report yet.
23. They will serve cocktails to the guests about ten minutes from now.
24. His sharp remarks embarrassed everyone last night.
25. Mr Brown introduced Fred to the fellow yesterday.
26. They have already announced the results of the exam.
27. They have sold thousands of CD machines since 1983.
28. A famous composer is conducting the concert tonight.
29. Someone should have discovered that a long time ago.
30. They were demonstrating the new video system when I went there yesterday.
31. I think they should spread a second coat of pain over that surface.
32. Someone might find a solution to the problem soon.
33. They broadcast the victory news over powerful loudspeakers so that the whole town could hear it.
34. Our hosts treated us very kindly last Saturday.
35. As soon as they sign the contract, that company will publish a new textbook next year.
36. They informed me that they had seen you in Oxford Street.
37. We ought to deal with the problem before people talk about it.
38. Eric sat silent in the car, wondering where they were taking him.
39. They looked on Bell as a sweet-tempered young man.
40. The trouble started when they told me to change the way we were running this department.
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