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The survival of civilization as we know it is ____
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The second paragraph focuses on the fact that ______.A.fossil energy was once very cheapB.
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The main function of the hormone is to control the bodys biological clock, ______ we know
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Jason failed one of the exams, but we should make_____for the fact that he had been ill fo
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According to the news item, we know that the stain is actually representing the______.A.wo
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From the first paragraph we know that __________.
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From the tone of the passage we know that the author is ______.A.doubtful about the necess