1.   Both rumors proved groundless.

2.   But if the rumors of renewed outbreaks in southern Brazil prove correct, a resumption of immunization will probably follow.

3.   However, when the rumors proved false, he resorted to a more fundamental means of motivation.

4.   If rumors prove true, expect something to happen soon on the Hideki Irabu front.

5.   If rumors of Scotty Bowman leaving the Red Wings after this season prove true, Wilson would be a top candidate in Motown, too.

6.   Moreover, the rumor proved remarkably persistent.

7.   Such rumors could prove dangerous for the Jordanian monarch, more than half of whose subjects hail from Palestine.

8.   The rumor proves to be false, and the stock price falls back.

9.   The rumors are proving hard enough to beat back.

10.   The rumors proved false, and subsequently were trumped by the shocking switch of crew chiefs.