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If this kind of fish becomes ________， future generations may ne

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Agriculture was a step in human progress ________ which subseque

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The same factors push wages and prices up together， the one ____

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Operations which left patients ________ and in need of long peri

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________ the temperature falling so rapidly， we couldn‘t go on w

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The bed has been ________ in the family. It was my great-grandmo

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According to the American federal government， residents of Hawai

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Our hopes ________ and fell in the same instant.

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With the _______of Mary, all the girl students are eager to go t

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Although the trffic is not busy, he likes to drive at a _______

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