—How can we save electricity in daily life?
—By ________ the lights when we leave a room, for example.
A. |
turning off |
B. |
putting off |
C. |
taking off |
—How can we save electricity in daily life?
—By ________ the lights when we leave a room, for example.
A. |
turning off |
B. |
putting off |
C. |
taking off |