11.   They went without a flashlight, as the Managuans do if they are out of doors when the lights go out.

12.   When the light went on, a dozen or so large flies began buzzing around the room, which unsettled him.

13.   When the oven reaches the correct heat, the light goes off.

14.   The lights went down as the orchestra started to play.

15.   We were having dinner when suddenly the lights went out.

16.   The lights went down and the curtain rose on an empty stage.

17.   Suddenly, all the lights went off.

18.   The light goes off when it finishes the programme.

19.   A light went on at seven every evening.

20.   The light went out, and the room was plunged into darkness.