11.   At the same time, the National Right to Life Committee is pressing pro-life members to vote against it if the opportunity presents itself.

12.   Birds can change their mind, Josephson said, and abandon polygyny for monogamy as soon as the opportunity presents itself.

13.   Braddock was a solid but limited fighter who was ready when the opportunity presented itself.

14.   A learning opportunity presents itself this week for those who envision themselves taking a major leap in the rankings.

15.   Bush has acknowledged repeatedly the unusual opportunity presented by the Fox regime and seemed prepared to capitalize on it.

16.   But he kept playing whenever and wherever an opportunity presented itself.

17.   But I expect him to make that play and I expect him to make it the next time the opportunity presents itself.

18.   But now that such an opportunity presents itself, he hesitates to specify what he wants to do.

19.   For so many exasperating innings, the opportunities presented themselves like countless stops on a subway line.

20.   He bolted the Nets when another opportunity presented itself.