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: He didn’t take his father’s advice. That’s why he is out of work.

A. If he had taken his father’s advice, he would not have been out of work.

B. If he took his father’s advice, he would not be out of work.

C. If he had taken his father’s advice, he would not be out of work.

D. If he takes his father’s advice, he will not be out of work.

Câu 2: 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 3: 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 4: The basketball team knew they lost the match. They soon started to blame each other.

A. Hardly had the basketball team known they lost the match when they started to blame each other.

B. No sooner had the basketball team started to blame each other than they knew they lost the match.

C. As soon as they blamed each other, the basketball team knew they lost the match.

D. Not only did the basketball team lose the match but they blamed each other as well.

Câu 5: People say that Mr. Goldman gave nearly a million pounds to charity last year.

A. Mr. Goldman is said to have given nearly a million pounds to charity last year.

B. Mr. Goldman was said to have given nearly a million pounds to charity last year.

C. Nearly a million pounds was said to have been given to charity by Mr. Goldman last year.

D. Nearly a million pounds is said to be given to charity by Mr. Goldman last year.

Câu 6: Start at once or you will be late.

A. Unless you start immediately, you won’t be late.

B. You would be late if you didn’t start at once.

C. If you don’t start immediately, you will be late.

D. If you started at once, you wouldn’t be late.