11.   All three Republican candidates are experienced, well-known women whom even Democrats grudgingly regard as formidable opponents.

12.   American spooks say he has been a formidable opponent.

13.   And Pete Postlethwaite makes Holabird, the prosecutor, a formidable opponent in court.

14.   And while Maddux and Glavine certainly could put together a two-game winning streak, they face formidable opponents in Jimmy Key and David Cone.

15.   Any mayor running for re-election at a time of economic growth and declines in crime, welfare, and some taxes would be a formidable opponent.

16.   A top Democratic strategist who asked not to be identified said Wilson would be a formidable opponent, should he survive the tough early primaries.

17.   Add a more formidable opponent and the Patriots lose Sunday.

18.   Albanese argues repeatedly that his ability to command such loyalty makes him the most formidable opponent to the Republican incumbent.

19.   Bush is a formidable opponent.

20.   Businessman, University of Texas Regent and Bush ally Tony Sanchez may seek the Democratic nomination and could be a formidable opponent.