31.  It was the first use of air power by NATO troops since taking over the U.N. mission in Bosnia.

32.  It was their first extensive use of the motion all season.

33.  It was the first use of guns for a beating in nearly a year.

34.  It was the first use of that form of intervention by the central bank to temper swings in its currency.

35.  Joschka Fischer, the German foreign minister, beat a tactical retreat after his proposal that NATO renounce the first use of nuclear weapons was dismissed as unrealistic.

36.  Leaves and other debris should be cleared before the first use.

37.  Mad cow disease could lead to the first use of a new state law that makes it illegal to say bad and untruthful things about perishable food products.

38.  My first serious use of this tool was more in the line of home repair than woodworking.

39.  New forms of terrorism are most frightening in their first use, when the targeted society is unprepared psychologically as well as physically.

40.  Officially, American policy at that time was no first use.