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: Most people get fewer colds in the summer than in the winter.

A. A person is more likely to get a cold in the winter than in the summer.

B. More people have summer colds than winter colds.

C. People get colder in the summer than in the winter.

D. The winter is much colder than the summer.

Câu 2: 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 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: 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 5: He failed his driving test the first time. As a result, he took it again.

A. He failed his driving test the first time and so he therefore took it again.

B. He failed his driving test the first time and he therefore took it again.

C. He failed his driving test the first time which he took it again.

D. Failing his driving test the first time and he therefore took it again.

Câu 6: 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.