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 boy was too fat to run far.

A. The boy's fatness didn't stop him running far.

B. The boy had to run a lot because he was fat.

C. The boy became ill because he was too fat.

D. The boy was very fat and couldn't run far.

Câu 3: He couldn’t retake the exam because he missed too many lessons.

A. He would retake the exam if he didn’t miss too many lessons.

B. He could have retaken the exam if he hadn’t missed too many lessons.

C. If he missed too many lessons, he wouldn’t retake the exam.

D. If he had missed too many lessons, he wouldn’t have retaken the exam.

Câu 4: Would you mind waiting outside the office?

A. Will you wait outside the office?

B. Did you wait outside the office?

C. Do you enjoy waiting outside the office?

D. Did you see anyone waiting outside the office?

Câu 5: The train should be here any minute now.

A. We know that the train is always here on time.

B. The train has not arrived here yet.

C. The train is known to be here in a minute.

D. We are expecting the train to arrive soon.

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.