1. She went to school by bus yesterday

→......How did she go to school?.....

 2. He bought this hat at the shop over there.

→..........Where did he buy this hat?.............

 3. It took me three hours to finish my homework.

→...................How long did it take you to finish your homework?........

 4. I need a phone card to phone my parents.

→..........................What do you need a phone card for?............

 5. It’s about 500 km from Lai Chau to Ha Noi.

→..................How far is it from Lai Chau to Ha Noi? .................

6. I saw her last night.

→.......................Who did you see last night?.........................................

7. Her neighbor gave her a nice dress.

→....................What did her neighbour give her? ......

8. They returned to America two weeks ago.

→............When did they return to America? .....

9. Mrs. Robinson bought a poster.

→.............What did Mrs Robinson buy?................................

10. My father was in Ha Noi last month.

→..........................Where did your father last month?.....................

11. He traveled to Nha Trang by train.

→....................How did he travel to Nha Trang? .................

12. She went to the doctor because she was sick.

→...............Why did she go to the doctor?.........................

13. Nam left home at 7 o’clock yesterday.

→.....................What time did Nam leave home yesterday? ........

14. He taught English in high school.

→.......Which subject did he teach in high school?.................

15. The homework was very difficult yesterday.

→.................How was the homework yesterday? .................

Bảng trơn lực ma sát giảm thì lượng phấn bám vào bảng ít làm chữ mờ đi. 

45, where are you going to spend your summer vacation?

46. The cinema is on the left of the bus stop and on the right of the theatre.

1. It is thought that drinking at least 8 cups of water is good for health

2. She doesn't want to be laughed at her

a, A = F.s = 400.6 = 2400(J)

b. P = A/t = 2400/120 = 20(W)

1. C

2. A

3. D

2)

1. A

2. C

Các bình chứa khí nguy hiểm khi bị làm nóng có thể làm nổ, vỡ bình vì thế ta phải chú ý không nên để các bình chứa chất khí, ga gần nơi có nhiệt độ cao.

1.D

2.C

3.C

gotta = got a

Eg: I have gotta pen = I have got a pen

gotta = have/has to = got to

Eg: I gotta go right now = I have to go rn

Diện tích của hiên nhà hình thang là:    

\(\dfrac{1}{2}\).45.(54 + 72) = 2835 (dm²)

Chi phí của cả hiên là:    

(2835: 9).103000 = 32445000 (đồng)