33. It took Nga 2 hours to type the report about the polluted environment.
34. The ballpoint pen was invented by brothers Lazlo and George Biro.
35. The window was broken by the boy who also took away some money.
36. The tree in the garden was cut down by someone yesterday.
37. A huge painting was created by the artist to raise funds for the poor children.
38. Several articles about the damage caused by the 11th storm were written by Mai.
39. While I walked into the kitchen, someone was making coffee.
40. At this time yesterday, my father was fixing the electrical sockets.
41. The meeting was being held by SJC Company when it began to rain.

33. It was reported that Russia typed a report on environmental pollution in 2 hours.
34. It is said that brothers Lazlo and George Biro invented the ballpoint pen.
35. It is said that the boy broke the window and took some money.
36. Was told someone cut down a tree in the garden yesterday.
37. It was said that the artist painted a giant painting to donate to poor children.
38. Was told that Mai had written some articles about the damage of the 11th storm.
39. Was told that when I went into the kitchen, someone was making coffee.
40. It was said that at this time yesterday, my father was fixing the electrical socket.
41. It was said that SJC Company was holding a meeting when it started to rain.
42. Was told that Mrs. Green was repairing the ladder at ten o'clock yesterday.
43. It was said that the chief engineer was giving instructions to all the factory workers.
44. It was said that next week, Mr. Han will visit Hanoi on his business trip.
45. It was said that next month, this company will hold an art exhibition.
46. It was said that next Friday, Nguyen Hue School will hold an English speaking contest.
47. It was said that Tom would return those books to the library tomorrow.
48. Was told that next week, the postman would deliver the newspaper to him.
49. Being told they cannot make tea in cold water. They have to brew tea in hot water.
50. Be told that a sudden increase in water pressure could cause a dam to burst.
51. You must clean the floor before painting it.
52. The girl has to decide whether to study law or medicine.