中国大学MOOC: Our plane is about to take off. Please ___________ your electronic devices.
举一反三
- Our plane is about to take off. Please ___________ your electronic devices.A. switch on B. switch off C. turn on D. turn down A: switch on B: switch off C: turn on D: turn down
- 9.The plane is about to take off. Please don’t _________________.
- Ladies and gentlemen,please switch _______ your mobile phones!The plane is taking off. A: over B: on C: to D: off
- Take off your shoes. Take off.
- The plane is about ______ (take) off .