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OG18 - 语法SC - 702
Between 14,000 and 8,000 B.C. the ice cap that covered northern Asia, Europe, and America began to melt, uncovering vast new areas that were to be occupied by migrating peoples moving northward.
  • Abegan to melt, uncovering vast new areas that were to be occupied 分析该选项
  • Bbegan melting, to uncover vast new areas to be occupied 分析该选项
  • Cbegan, by melting, to uncover vast new areas for occupation 分析该选项
  • Dbegan, after melting, uncovering vast new areas which are to be occupied 分析该选项
  • Ewould begin to uncover, through melting, vast new areas for occupation 分析该选项
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正确答案: A

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