that passengers give can be confirmed.
举一反三
- The cabin attendants give the passengers a brief introduction to the airport and the city that the plane is approaching.
- Sometimes passengers can upgrade their class for free.( )
- Please give your opinions,what should passengers do in case ofan emergency.
- Passengers can speak to their freiends on _____ through a wireless telephone.
- 2 Passengers in b class can board now.