1.   The machine works using solar power.

2.   What geophysicists need is a blueprint for how the earth machine works.

3.   The machine is working properly.

4.   Would you mind giving us a demonstration so that we can see how the machine works?

5.   She explained how the machine worked.

6.   Reattach that thingamajig and the machine should work.

7.   Would you mind demonstrating how the machine works?

8.   Sunil was busily getting the machine to work.

9.   Machines Work For All.

10.   A handyman is at the door to say the pitching machine was working.