1.   A minor problem prevents the machine firing this turn.

2.   These problems have prevented me from completing the work.

3.   And financial problems have prevented one of his grandsons from attending the village high school.

4.   An electrical problem prevented Darrington from doing the same, Castlebury said.

5.   And their placekicking problems prevented them from scoring on the sole opportunity they had.

6.   Another official suggested that technical problems prevented the operation from becoming productive.

7.   Academic problems have prevented him from playing a game.

8.   Academic problems prevented her from building on her college record, but Miller has been impressed with her smarts in camp.

9.   Circuit-board problems then prevented a normal startup, and Logan controllers continued to use a backup system.

10.   Fleischer said scheduling problems prevented the Texas governor from attending the convention.