The flight attendants will show all passengers the use of _____________, the location of the emergency exits on board.
A: life vest
B: oxygen mask
C: seat belt
D: All above
A: life vest
B: oxygen mask
C: seat belt
D: All above
举一反三
- 中国大学MOOC: The flight attendants will show all passengers the use of _____________, the location of the emergency exits on board.
- All the passengers _____ board the plane should fasten their seat belts. A: to B: in C: on D: at
- Before the flight takes off, all the passengers are asked to (fast) ______ their seat belts.
- 中国大学MOOC: All the passengers _____ board the plane should fasten their seat belts.
- 5.The pilot asked all the passengers on board to remain________ as the plane was making a landing. A: seat B: seating C: seated D: to be seating