Câu hỏi: People have discovered a new source of energy.

A. A new source of energy has discovered.

B. A new source of energy was discovered.

C. A new source of energy have been discovered

D. A new source of energy has been discovered

Câu 1: I hardly know the truth about Jean’s success in the institute.

A. I do not know much about Jean’s success in the institute.

B. It is difficult for Jean to be successful in the institute.

C. Jean’s success in the institute was not to be known.

D. Jean hardly become known and successful in the institute.

Câu 2: The storm blew a lot of trees down last night.

A. A lot of trees were blown down last night by the storm.

B. A lot of trees were cut down last night

C. The storm could have blown a lot of trees down.

D. The storm was strong enough to blow down old trees.

Câu 3: I am not certain, but there may be about twenty applicants for the job.

A. I am not sure if there are about twenty applicants for the job.

B. At a guess, there are about twenty applicants for the job

C. I guess that there are twenty applicants for the job

D. Twenty people are guessed to have applied for the job

Câu 4: He was driving so fast that he could have had an accident.

A. He wasn’t driving fast enough to avoid an accident.

B. He did’t have an accident although he was driving very fast.

C. If he had been driving very fast, he would have had an accident.

D. An accident happended, and it was caused by his very fast driving.

Câu 5: Cars cause pollution but people still want them.

A. Because cars cause pollution, people want them.

B. Despite the fact that cars cause pollution, people want them.

C. Cars cause pollution although people want them.

D. Cars cause pollution because people still want them.

Câu 6: Their complaints to the head office should be sent.

A. People should send their complaints to the head office.

B. Complaints should be sent to the head office.

C. Complaints should be sent to the head office by people.

D. Their complaints should be sent to the head office by people.