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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 930

After living with his grandparents in the countryside for ten years, the boy returned to the big city ____ his parents worked.

A.which B.where C.that D.when
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Afterlivingwithhisgrandparents