31. Hoa Hoc Tro weekly magazine will be subcribed by John if he lives in Viet Nam.
32. When was this hotel built ?
33. This room is cleaned by Mai evevyday.
34. Money is being sent to that man's relatives by him.
35. The bank near our house was robbed last week.
36. She has not been invited to the party.
37. They had been driven to the airport by their father before we came.
38. Their complaints should be sent to the head office.
39. The game is being introduced to students.
40. This form must be filled.
41. aren't they.
42. doesn't it.
43. didn't you.
44. isn't it.
45. does they?