Câu hỏi: 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 1: 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 2: “Why don’t you choose German as your optional subject?” said Jane.

A. Jane admitted that I chose German as my optional subject.

B. Jane suggested that I choose German as my optional subject.

C. Jane reminded me of choosing German as my optional subject.

D. Jane suggested choosing German as my optional subject.

Câu 3: He can’t give you a lift because he doesn’t have a car.

A. Despite having a car, he can't give you a lift.

B. If he has a car, he can give you a lift.

C. If he had a car, he could give you a lift.

D. He can give you a lift although he doesn't have a car.

Câu 4: The leader went so fast. No one could keep up with him.

A. If only the leader had gone faster.

B. What a fast leader!

C. If the leader hadn’t gone so fast, we could have kept up with him.

D. I wish the leader could not have kept up with us.

Câu 5: It is a basic requirement in the modern world to be able to deal with figures.

A. The world requires us to have a basic understanding of figures.

B. Being able to deal with figures is a basic requirement in the modern world.

C. Dealing with the modern world requires a basic knowledge of figures.

D. Dealing with figures requires a basic knowledge of the modern world.

Câu 6: If I won a big prize in a lottery, I'd give up my job.

A. Although I won the lottery, I gave up my job.

B. Were I to win the lottery, I gave up my job.

C. Unless I won the lottery, I gave up my job.

D. Had I won the lottery, I gave up my job.