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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 941

8. Usually passengers are required to arrive at _____ one hour before ______ takes off.

A.airport; aircrafts B.the airport, aircraft
C.an airport, a aircraft D.the airport, the aircraft
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相关知识点

8.Usuallypassengersarerequired