21.   But scientists do not agree that testing is necessary for these purposes and a majority of French public opinion opposes renewed tests.

22.   But other players think testing is the only way to ensure that the sport remains fair.

23.   But the rules also allow states to continue using the treadmill test and even to earn pollution credits if they demonstrate that treadmill testing is more effective.

24.   But testing is only one aspect of the very complex job being performed at the other end of your water main.

25.   Clearly, he was speaking to the Chinese, who administration officials believe were in part testing the new administration by drawing out the return of the Americans.

26.   Crash investigators said they realized that finding and testing the wreckage was the easy part of the investigation.

27.   Data is still being analyzed and collected, and there is more testing to do, said a Telcordia official, Sarita Khurana.

28.   Despite assurances from India and Pakistan that testing is over, the White House has voiced fear that South Asia still has the potential to careen out of control.

29.   Dr. Arthur Caplan, director of the Center for Bioethics at the University of Pennsylvania, is one who feels strongly that testing should be required.

30.   Doyle, a consultant to Odwalla, said testing is unreliable because it takes so few bugs to cause human illness.