Why do you often forget to ______the lights when you go out of the classroom?”

A. turn on (v) turn on

B. turn off (v) off

C. close (v) close

D. shut down (v) interrupt, turn off

Distinguish: turn off >< shut down

– Turn off is used for small electrical appliances and has a simple way to turn it off

– shut down is used for large appliances and appliances, there is a more complicated way to shutdown

=> “Why do you often forget to turn off the lights when you go out of the classroom?”

“Why do you often forget to turn off the lights when you leave the classroom?”

The answer to choose is: GET