Câu hỏi: 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.

Câu 1: 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 2: No other city in Vietnam is so large as Ho Chi Minh City.

A. Ho Chi Minh City is as large as other cities in Vietnam.

B. Ho Chi Minh City is the largest city in Vietnam.

C. Ho Chi Minh City is not so large as other cities in Vietnam.

D. Other cities in Vietnam are larger than Ho Chi Minh City.

Câu 3: He arrived early, which made everyone surprised.

A. Everyone was surprised at his early arrival.

B. He was so surprised that he arrived early.

C. He was so surprised that everyone arrived early.

D. It was so surprising that everyone arrived early.

Câu 4: No one has seen Linda since the day of the party.

A. Linda has not been seen since the day of the party.

B. Linda is nowhere to be seen at the party.

C. The party is going on without Linda.

D. No one has seen Linda for ages.

Câu 5: 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 6: They are going to hold next year's congress in San Francisco.

A. Congress is going to be held next year in San Francisco.

B. Congress in San Francisco is going to be held next year.

C. Next year's congress is going to be held by them held next year.

D. Next year's congress is going to be held in San Francisco.