21.   But there are nagging questions about him.

22.   But what continued was the nagging question of why nothing was done when something could have been done.

23.   First came misfortune Wednesday night, which eventually resulted in misery, which left the Dallas Stars with a nagging question to ponder.

24.   For most of a decade, Tyco prospered, and was strongly supported by Wall Street analysts, despite nagging questions about its financial reporting.

25.   For Parker, such nagging questions never have been answered, and in their wake is a different America.

26.   He has a nagging question about his employees.

27.   I have no answers to nagging questions about life, death and the hereafter.

28.   In that regard, what happened this week near Denver caused a nagging personal question to resurface.

29.   It also leaves us with several nagging unanswered questions.

30.   Israelis are now nervously facing nagging questions that many thought they had left behind.