All the lights before we left the office.
A: has been turned off
B: have turned off
C: had been turned off
D: had turned off
A: has been turned off
B: have turned off
C: had been turned off
D: had turned 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
- Jim turned off the lights and then _____ the classroom. A. is leaving B. had left C. has left D. left
- 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
- David, turn off the TV no one is watching it.--But it off already! The music is from the radio.A、 so that; has been turned B、 when; has turned C、 if; has been turned D、 because; has turned A: A B: B C: C D: D
- The office building will be _____ a library. A: turned off B: turned on C: turned up D: turned into