11.   A nagging question remained.

12.   All those nagging questions that lay dormant the last three weeks rose from the steaming rubble, and now serious agitation is officially the only option.

13.   Brier and Wade were determined to answer nagging questions regarding Egyptian mummification.

14.   But a nagging question haunts successful independent churches.

15.   But many have not suffered through a sustained drop in prices, and the nagging question for the pros is how the amateurs will react to such a decline.

16.   But nagging questions about how responsibility was shouldered seem unlikely to fade soon.

17.   But the arrest left nagging questions about whether there were Israeli Arabs who had become accomplices of Muslim militants.

18.   But several nagging questions remain for the new CitySearch and for the chaotic, still emerging world of city guides.

19.   But the nagging question of the future of the team hung over the festivities.

20.   But some nagging questions remain.