--- The light in the office is still on.
A: turn it off
B: having turned it off
C: to turn it off
D: turning it off
A: turn it off
B: having turned it off
C: to turn it off
D: turning it off
举一反三
- I forget ______ the light in the office, so the lights in the office are still on. A: turning off B: to turn off C: having turned off D: turned off
- The light in the office is still on. John's forgotten ___ . A: turn it off B: turning it off C: to turn it off
- I thought I ____ the light, but it is still turn on. A: had turned off B: was turning off C: have turned off D: would turn off
- --- Look! The lights in the classroom are still on. __________ A: turning them off B: turn them off C: to turn them off D: having turned them off
- —The light in the office still on. —Sorry! I forgot ( )when I left. A: turned it off B: turned it on C: to turn it off D: to turn it on