问题
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听力原文:W: Were you hard-working when you were in high school, David?M: Yes, I studied ha
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The square in front of the supermarket is so limited that when going there, first of all,
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In previous times, when fresh meat was inadequate, pigeons were kept by many households as
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When were the chemicals first used in America?A.Before the American Revolution.B.Over thir
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Student journalists are taught how to be______when writing in a limited space.A.conciseB.p
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Three men were fishing when the angel appeared in the boat 66.
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