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

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

Câu 1: Some kinds of fish live in fresh water. Others live in sea water.

A. Some kinds of fish live in fresh water, for others live in sea water.

B. Some kinds of fish live in fresh water, so others live in sea water.

C. Some kinds of fish live in fresh water, or others live in sea water.

D. Some kinds of fish live in fresh water, and others live in sea water.

Câu 2: “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 3: No sooner had she put the telephone down than her boss rang back.

A. Scarcely had she put the telephone down when her boss rang back.

B. She had hardly put the telephone down without her boss rang back.

C. Hardly she had hung up, she rang her boss immediately.

D. As soon as her boss rang back, she put down the telephone.

Câu 4: The young girl has great experience of nursing. She has worked as a hospital volunteer for years.

A. Before she worked as a hospital volunteer for years, the young girl has great experience of nursing.

B. Much as she has worked as a hospital volunteer for years, the young girl has great experience of nursing.

C. Having worked as a hospital volunteer for years, the young girl has great experience of nursing.

D. With great experience of nursing, the young girl has worked as a hospital volunteer for years.

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: I didn’t arrive in time. I was not able to see her off.

A. I arrived very late to say goodbye to her.

B. She had left because I was not on time.

C. I was not early enough to see her off.

D. I didn’t go there , so I could not see her off.