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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较难
  • 浏览 1756

To prepare for the Olympic Games in summer, London ____ its largest ever exercise to test the response of emergency services.

A.planned B.is planning C.had planned D.plans
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TopreparefortheOlympicGamesins