Câu hỏi: 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 1: 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.

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: 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 4: The president offered his congratulations to the players when they won the cup.

A. The president congratulated the players on their winning the match.

B. When they won the cup, the players had been offered some congratulations from the president.

C. The president would offered the players congratulations if they won the match.

D. The president congratulated that the players had won the cup.

Câu 5: 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 6: 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.