1.   Someone turned the switch and the lights came on.

2.   Turn the switch on.

3.   American Airlines now requires the pilot and co-pilot to acknowledge the spoiler switch has been turned on.

4.   A ceremony is being planned at the building to turn on the lights, and Mallory is expected to turn the switch to change the lights.

5.   But the dimmer switch had been turned down much earlier.

6.   Conversely, when the switch is turned off, the brain wakes up.

7.   Could Arafat turn them off like turning a switch?

8.   Herceptin keeps the switch turned off.

9.   How do they turn the switch back on?

10.   It was like a switch had been turned off.