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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1907

—Why couldn’t they meet us at five o’clock?
—Because they were delayed by _________.

A.heavy traffic B.heavy traffics C.crowded traffic D.crowded traffics
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—Whycouldn’ttheymeetusatfiveo’