网址：http://m.1010jiajiao.com/timu_id_2547536[举报]
When you leave, don’t forget ____ off the light.
A. to turn B. turning C. turn D. turned
A．to turn
B．turning
C．turn
D．turned
Don't forget ______ the light when you leave.
A. turn off B. to turn off C. turning off D. turned off