--- It's dark(黑的) now, and I can't see anything.
---The light is behind the door, you can
A. open it B. turn on it C. turn it off D. turn it on
--- It's dark(黑的) now, and I can't see anything.
---The light is behind the door, you can
A. open it B. turn on it C. turn it off D. turn it on
D