Dưới đây là các câu bị động tương ứng với những câu bạn đã đưa ra:

26. The entire block of houses is being demolished.
27. Has the wallet been taken by someone?
28. This letter should not be sent to the office.
29. The first paper was made by Chinese people.
30. The videophone was invented by the Filipino scientist Gregorio Zara.
31. The project should be done by the girl for tomorrow.
32. Information has been searched on the web by me.
33. The English exercises have been rewritten by Sheila.
34. All the food was eaten and all the wine was drunk by my guests.
35. Newspapers are often left on trains and buses by people.