Câu hỏi: I'd have bought Sam's car if I'd known he was selling it. 

A. I knew Sam wanted to sell his car.

B. I didn't buy Sam's car because I didn't know he was selling it.

C. I bought the car without knowing it was Sam's.

D. I'll buy the car as soon as Sam decides to sell it.

Câu 1: It was thought that the accident was caused by human error. 

A. People think that human error causes the accident. 

B. The accident was thought to be caused by human error. 

C. The accident is thought to cause human error

D. People thought that the accident is caused by human error. 

Câu 2: With six children on her hands, she is extremely busy. 

A. She's very busy because she always carries her six children. 

B. Her six children's hands always make her busy. 

C. She's too busy to look after her six children.

D. With six children to look after, she's very busy.

Câu 3: Not until I left home did I realize how much my father meant to me. 

A. I realized how much my father meant to me just when I was home.

B. I left home and didn't realize how much my father meant to me.

C. It was only when I left home that I realized how much my father meant to me. 

D. Before I left home, I had realized how much my father meant to me. 

Câu 4: The film was so boring that I fell asleep. 

A. I fell asleep because the film was very boring.

B. It was such an interesting film that I fell asleep.

C. The film was interesting enough, but I fell asleep.

D. The film was too boring for me to fall asleep.

Câu 5: "If only I'd learnt to drive," Roger said. 

A. Roger thinks he should learn to drive now. 

B. Roger is pleased he learnt to drive. 

C. Roger wishes he had learnt to drive.

D. Roger regrets learning to drive. 

Câu 6: By next Friday, Sam……….five speeches. 

A. gives 

B. will give

C. will have given

D. has given