39. My uncle prefers gardening to fishing.
40. My mother cooks better than my sister.
41. That shirt is more expensive than this one.
44. My father drives more carefully than me.
45. No students in this class is more intelligent than Dung.
46. Bread doesn't have more calories than cheese.
47. Mai speaks English better than Nam.
48. Is Chinese as difficult as Japenese?
49. This exercise is easier than the last exercise.
50. Because he was lazy, he failed the exam.
51. It's not necessary for you to Set off early.
52. I used to have a cat.
53. Minh has collected stamps since 2000.
54. We have not become close friends for a long time.
