1.   A singular criminal act?

2.   But no matter what the motivation, the singular act has made her a heroine to many Americans who relate to the problem.

3.   Courier charmed them by a singular act of an American champion in Paris, giving his trophy acceptance speeches in French.

4.   It was no singular act.

5.   That singular act of destruction impressed on employees that poor quality would no longer be acceptable.

6.   The singular act of defiance was televised and sent quivers through Japan, which prides itself on harmony.