Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

We spend about one-third of our lives sleeping. We know relatively little about sleep

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

We know relatively little about sleep; as a result, we spend about one-third of our lives sleeping.

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

We shall know more about sleep if we spend more than one-third of our lives sleeping.

Giải thích

Đáp án đúng: A

Giải thích: Despite + mệnh đề, mệnh đề: mặc dù …

Dịch: Mặc dù dành khoảng một phần ba cuộc đời để ngủ, nhưng chúng ta biết tương đối ít về giấc ngủ