11.   Frankfumbled around in the darkness, unable to find the light switch.

12.   ...a light switch.

13.   I groped for the light switch.

14.   I fumbled my way into the living-room and closed the door behind me before hitting the light switch.

15.   He searched for the handle but found a light switch.

16.   She felt for the light switch and clicked but nothing happened.

17.   Well first of all erm we wanted to find the light switch.

18.   Groaning, she reached for the light switch.

19.   Rising to his feet, he touched the light switch, dispelling the gathering gloom, before striding through to his office.

20.   Where are all the light switches?