Youshould（）themooringlinesatthesametimewhenthewindisbig.
A: fasten
B: slack
C: fast
D: slacken
A: fasten
B: slack
C: fast
D: slacken
举一反三
- Please take your seat and ___________(fast, fasten) your seat belt.
- Notonly__________dothework,but__________finishitontime. A: youshould;youshould B: shouldyou;shouldyou C: shouldyou;youshould D: youshould;shouldyou
- Youshould
- 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
- 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