VIII, Write the second sentence so that it has the same meaning as the first one.

51. He broke the vase because he was careless.

He broke the vase because of being careless.

52. He doesn't have money. He can't buy a new bicycle.

If he had money, he could buy a new bicycle.

53. We don't use more oil and coal. Pollution doesn't increase.

If we used more oil and coal, pollution would increase.

54. She was hungry so she had a big lunch.

She had a big lunch because she was hungry.

55. All the shops were shut because it was a public day.

It was a public day so that all the shops were shut.

56. Because I am sick, I don't want to go out.

Because of being sick, I don't want to go out.

57. Let's use public buses instead of motorbikes.

What about using public buses instead of motorbikes ?

58. The river is too dirty for us to swim in.

We can't swim in the river because it is too dirty.

59. Work hard and you will pass your exam.

If you work hard, you will pass your exam.

$@mocmoc756$

=>
51. He broke the vase because of being careless.
52. If he had money, he could buy a new bicycle.
53. If we don't use more oil and coal, pollution won't increase.
54. She had a big lunch because she was hungry.
55. It was a public day so all the shops were shut.
56. Because of being sick, I don't want to go out.
57. What about using public buses instead of motorbikes.
58. We can't swim because the river is too dirty.
59. If you work hard, you will pass your exam.

VI/
39. is called -> câu bị động
40. why : tại sao
41. so : vì vậy
42. caused 
43. like
44. population : dân số
45. quickly