1.   A computer program verifies that the system is working.

2.   A trainer came in to demonstrate how the new computer system worked.

3.   Chronicles written by Roman scholars can give us a good idea of how their political system worked.

4.   Despite this we were quite pleased that the exercise had showed the system worked.

5.   Free estimates are available on request and a videotape provides a demonstration of how the system works.

6.   If a system does not work for some speakers, there are several possible solutions.

7.   It sounds simple, but Aprilia and Orbital faced a tough challenge getting the system to work.

8.   See, for instance, how the expensive Floyd Rose tremolo systems have worked their way down to cheaper guitars.

9.   Sometimes the jury system does not work....

10.   The first time he tried it on me, the system did not work well.