Câu hỏi: An electrical fault could have caused the fire.

A. An electrical fault could have been caused by the fire.

B. An electrical fault could have caused the fire.

C. The fire could have caused an electrical fault.

D. The fire could have been caused by a electrical fault.

Câu 1: They are building a new highway around the city.

A. Around the city a new highway is being built.

B. A new highway is being built around the city.

C. A new highway is being built around the city by them

D. A new highway around the city is being built.

Câu 2: People say Chinese food is the best in the world.

A. Chinese food is said to be the best in the world.

B. I agree that Chinese food is the best in the world.

C. Chinese food is eaten all over the world.

D. No food in the world is eaten as much as Chinese food.

Câu 3: The rate of inflation has fallen steadily during recent months.

A. There has been a steady decline of the rate of inflation during recent months.

B. There is a steady decline of the rate of inflation during recent months.

C. There is a steady decline of the rate in inflation during recent months.

D. There has been a steady decline in the rate of inflation during recent months.

Câu 4: He didn't know how to swim until he was 30.

A. It was not until he was 30 that he knew how to swim.

B. He knew how to swim after his 30s.

C. It took him 30 years to know how to swim.

D. He still didn't know how to swim until his 30s.

Câu 5: When the unemployment rate is high, the crime rate is usually also high.

A. The unemployment rate and the crime rate are both high.

B. The unemployment rate is as high as crime rate.

C. The high rate of unemployment depends on the high rate of crime.

D. The higher unemployment rate is, the higher crime rate is.

Câu 6: I last saw Bob when I was in Ho Chi Minh City.

A. I didn't see Bob since I was in Ho Chi Minh City.

B. I could see Bob if I was in Ho Chi Minh City.

C. I haven't seen Bob since I was in Ho Chi Minh City.

D. When I was in Ho Chi Minh City, I saw Bob.