Câu hỏi: We spend about one-third of our lives sleeping. We know relatively little about sleep.

A. We know relatively little about sleep; as a result, we spend about one-third of our lives sleeping.

B. We shall know more about sleep if we spend more than one-third of our lives sleeping.

C. Despite spending about one-third of our lives sleeping, we know relatively little about sleep.

D. We spend about one-third of our lives sleeping so that we know relatively little about sleep.

Câu 1: They couldn’t think of anything better to do. They decided to baby-sit for the family.

A. As long as they couldn’t think of anything better to do, they decided to baby-sit for the family.

B. They couldn’t think of anything better to do, yet they decided to baby-sit for the family.

C. Since they couldn’t think of anything better to do, they decided to baby-sit for the family.

D. As soon as they couldn’t think of anything better to do, they decided to baby-sit for the family.

Câu 2: The doctor said, “You really ought to rest for a few days. Jasmine."

A. The doctor strongly advised Jasmine to take a few days' rest.

B. The doctor suggested that Jasmine should take a short rest.

C. Jasmine's doctor told that she should rest for a few days.

D. It is the doctor's recommendation that Jasmine should take a short rest.

Câu 3: You’d better take the keys. It’s possible I’ll come home late.

A. If I come home late, you’d better take the keys.

B. You’d better take the keys in case I come home late.

C. You'd better take the keys as I possibly come home late.

D. I'll probably come home late so that you’d better take the keys.

Câu 4: We cut down many forests. The Earth becomes hot.

A. The more forests we cut down, the hotter the Earth becomes.

B. The more we cut down forests, the hotter the Earth becomes.

C. The more forests we cut down, the Earth becomes hotter.

D. The more we cut down forests, the Earth becomes hotter.

Câu 5: He is an authority on primitive religion.

A. He has official permission to practise primitive religion.

B. He is famous for his vast knowledge of primitive religion.

C. He has authority over the people who practise primitive religion.

D. He has a great influence on the people who practise primitive religion.

Câu 6: He is very intelligent. He can solve all the problems in no time.

A. So intelligent is he that he can solve all the problems in no time.

B. He is very intelligent that he can solve all the problems in no time.

C. An intelligent student is he that he can solve all the problems in no time.

D. So intelligent a student is he that he can solve all the problems in no time.