6

b.has

Công cha như núi Thái Sơn

Nghĩa mẹ như nước trong nguồn chảy ra

1. A. as B. than C. more D. less

2. A. more rapid B. rapidly C. more rapidly D. as rapidly

3. A. Although B. After C. Because D. If

4. A. work B. take C. make D. run

5. A. science B. scientific C. scientifical D. scientifically

6. A. on B. to C. between D. from

7. A. more B. less C. most D. much

8. A. which B. who C. where D. when

9. A. into B. from C. of D. to

10. A. use B. perform C. appear D. treat

We have been away from home for a long time. We feel  homesick now

-> C

Số lít mật ong trong mỗi can là:

45:8=5,625 ( lít )

Số can để đựng 30 lít mật ong là:

30 : 2 = 15 ( can )

Đáp số: 15 can

79. He hasn't laughed so much for ages. It's ages since he last laughed.

80. I haven't enjoyed myself so much for years. It’s years since I last enjoyed myself so much. 

81. The telephone rang for hours. It’s hours since the telephone rang.

82. I haven't seen him for ages. It’s ages since I last saw him.

 83. I have learned English for four years. We started to learn English four years ago.

84. Ly’s father started to stop smoking last year. Ly’s father hasn't smoked since last year.

85. The editor hasn’t written to Mai for a month. The editor last wrote to Mai a month ago

86. How long have you learned spanish? How long ago did you start to learn Spanish?

Đổi: 2$\frac{3}{4}$kg= $\frac{11}{4}$kg

Túi thứ 2 chưa số ki lô gam gạo là:

$\frac{11}{4}-\frac{1}{2}=\frac{9}{4}\left(kg\right)$

Cả 2 túi chứa được số ki lô gam gạo là:

$\frac{11}{4}+\frac{9}{4}=\frac{20}{4}\left(kg\right)$

Đổi:$\frac{20}{4}kg=5kg$

Đáp số : 5kg