When to fasten the seat belt?
A: for take-off
B: for landing
C: during air turbulence
D: whenever the Fasten Seat Belt sign is on
A: for take-off
B: for landing
C: during air turbulence
D: whenever the Fasten Seat Belt sign is on
举一反三
- Fasten the seat belt while the Fasten Seat Belt Sign is on.（ ）
- When to fasten the seat belt?
- You may _____ your seat belt when the seat belt sign is switched off. A: release B: return C: fasten D: adjust
- When driving, we are to fasten the seat belt for safety.
- Please fasten your _______. A: belt B: string C: seat belt D: safety belt