To live a green life, we should remember to _________ the lights when we leave a room.
A. |
turn on |
B. |
turn off |
C. |
turn up |
D. |
turn down |
To live a green life, we should remember to _________ the lights when we leave a room.
A. |
turn on |
B. |
turn off |
C. |
turn up |
D. |
turn down |