Note that smoking (forbid) （） during the plane takes off.
举一反三
- 中国大学MOOC: There is only______time left before the plane takes off.
- 中国大学MOOC: You will have to fasten the ______________before the plane takes off.
- Don't smoke until the plane _____ off. A: takes B: take C: will take
- The plane __________at three o'clock in the afternoon. A: takes off B: takes away C: takes out D: takes down
- We don’t need to return our seat back to the upright position when the plane takes off.( )