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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 2085

During the period of recent terrorist activities, people _____ not to touch an unattended bag.

A.had always been warned B.were always being warned
C.are always warning D.always warned
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Duringtheperiodofrecentterrori