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: 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 2: I am sure he did not know that his brother graduated with flying colors.

A. He should not have been envious of his brother's achievement.

B. He cannot have known that his brother graduated with very high marks.

C. That his brother graduated with flying colors must have been appreciated by him.

D. He may not know that his brother is flying gradually up in a colorful balloon.

Câu 3: Without your help, I couldn’t have succeeded.

A. You didn’t help me and I didn’t succeed

B. I succeeded even you didn’t help me

C. In spite of your help, I wasn’t successful.

D. I was successful due to your help.

Câu 4: The coffee was not strong. It didn’t keep us awake.

A. The coffee was not very strong, but it couldn’t keep us awake

B. We were kept awake because the coffee was strong.

C. The coffee was not strong enough to keep us awake

D. The coffee was so hot that it didn’t keep us awake.

Câu 5: 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 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.