首页 / 高中英语 / 试题详细
  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 280

All passengers ____, please fasten your seat belts and remain seated ____the plane is landing.

A.on board; until B.abroad; since C.on the board; before D.aboard; when
登录免费查看答案和解析
相关知识点

Allpassengers,pleasefastenyour