中国大学MOOC: Passengers are required to turn off all electronic and __________(数码的) devices during a flight journey.
举一反三
- During the whole flight passengers have to turn off ______
- Before the flight takes off, all the passengers are asked to (fast) ______ their seat belts.
- 中国大学MOOC: The flight attendants will show all passengers the use of _____________, the location of the emergency exits on board.
- 中国大学MOOC: All flight ____ because of the snowstorm, many passengers could do nothing but stay at the airport.
- 中国大学MOOC: 1.For safety, all passengers are required to review this card and follow these instructions when needed.