Câu hỏi: I didn’t know you were coming, so I didn’t wait for you.

A. If I had known you were coming, I wouldn’t have waited for you.

B. I would have waited for you if I knew you were coming.

C. If I had know you were coming, I would wait for you.

D. Had I known you were coming, I would have waited for you.

Câu 1: “I’ll call you as soon as I arrive at the airport,” he said to me.

A. He objected to calling me as soon as he arrived at the airport.

B. He promised to call me as soon as he arrived at the airport.

C. He denied calling me as soon as he arrived at the airport.

D. He reminded me to call him as soon as he arrived at the airport.

Câu 2: We survived that accident because we were wearing our seat belts.

A. If we weren't wearing our seat belts, we couldn't have survived that accident.

B. But for our seat belts, we would have survived that accident.

C. Had we not been wearing our seat belts, we wouldn't have survived that accident.

D. Without our seat belts, we could have survived that accident.

Câu 3: Jack has won a jackpot prize. 10% of it was donated to flooded areas.

A. Jack has won a jackpot prize, 10% which half was donated to flooded areas.

B. Jack has won a jackpot prize, 10% of which was donated to flooded areas.

C. Jack has won a jackpot prize, 10% of that was donated to flooded areas.

D. Jack has won a jackpot prize, which was donated to flooded areas.

Câu 4: Unless we protect the environment, our life will be badly affected.

A. If our life is badly affected, we will protect the environment.

B. If we protect the environment, our life will be badly affected.

C. If we don’t protect the environment, our life won’t be badly affected.

D. If we don’t protect the environment, our life will be badly affected.

Câu 5: Harry no longer smokes a lot.

A. Harry now smokes a lot.

B. Harry used to smoke a lot.

C. Harry didn’t use to smoke a lot.

D. Harry rarely smoked a lot.

Câu 6: "No, I won't go to work at the weekend," said Sally.

A. Sally apologized for not going to work at the weekend.

B. Sally regretted not going to work at the weekend.

C. Sally promised to go to work at the weekend.

D. Sally refused to go to work at the weekend.