They can see nothing with lights off.（)
举一反三
- We could see nothing because the lights suddenly ______. A: went on B: went over C: went out
- By turning off lights, the television, and the computer when you are them, you can help a lot.
- Please ________ that all lights are turned off.
- Suddenly all the lights went out. We ________ see anything. (can't/couldn't)
- Suddenly all the lights went out. We can't/couldn't see anything.