31.   But once again, scientists had underestimated the strange things that are possible on the quantum realm.

32.   But such a thing would not be possible on this night.

33.   But that separation would allow simultaneous landings even in bad weather, which is not possible on the current close-together parallel runways.

34.   But the safety board said that this belief was obsolete, because such an effect is not possible on modern aircraft.

35.   But the safety board said that this belief was obsolete, because such bridging is not possible on modern aircraft.

36.   But there is no pulling back possible on GATT.

37.   But White House spokesman Ari Fleischer said the president believed he had done everything possible on the diplomatic level.

38.   By the middle of this decade, spot power shortages are possible on hot days, Fleishman said.

39.   Castaqeda has sought to put the best light possible on it.

40.   Claybrook said Bush and Texas need to work toward a plan that performs the toughest emissions tests possible on the cars of Texas drivers.