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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 595

At the age of fifteen she gave up taking piano lessons to _____ her school work.

A.hold on B.call on C.put on D.concentrate on
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Attheageoffifteenshegaveuptaki