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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 153

Once______ a difficult and even dangerous place______,Vietnam is now a friendly destination that welcomes visitors from all over the world.

A.considered; visiting B.considered; to visit
C.considering; visiting D.considering; to visit
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Onceadifficultandevendangerous