46. Our students don't have enough money, so they can’t carry out the project.

à If students had enough money, they could carry out the project.

47. What a pity! There isn’t any amusement park in our village.

à I wish there were an any amusement park in our village.

48. Despite the heavy rain, we went to the meeting on time.                    

à Although it rained heavily, we went to the meeting on time.

49. "Are you going to Hoi An tomorrow, Tom?” said Hoa.

à Hoa asked Tom if he was going to Hoi An the following day.

50. It is two years since she last met her boyfriend.

à She hasn’t met her boyfriend for two years.

51. Why don’t we use biogas instead of burning coal?

à I suggest that we (should) use biogas instead of burning coal.

52. Spending time playing sports is necessary.

à It is necessary to spend time playing sports.

53. They have just built a new school in their village.

à A new school has just been built in their village.

54. Mount Everest is the highest mountain in the world.

à No mountain in the world is higher than Mount Everest.

55. If Linh doesn’t tell us her problems, we can't help her.

à Unless Linh tells us her problems, we can't help her.