41.   It was a common occurrence Thursday that people asked that their last names be withheld.

42.   IT is such a common occurrence that many among them are not even fazed by it.

43.   Laying an egg in a high-profile game has become a common occurrence for Texas-based college football teams in recent seasons.

44.   Many real estate agents in New York City suburban communities say sealed bids have become an almost common occurrence.

45.   Mold and mildew are a common occurrence in homes.

46.   My driver and I came upon a street fight between students at different schools, a common occurrence here.

47.   Pipelines in the United States have never been deliberately attacked by terrorists, but elsewhere in the world it is a common occurrence.

48.   Protests by disgruntled pensioners have become a common occurrence nationwide.

49.   Residents in the area said gang violence, crime and gunfire were a common occurrence in the neighborhood.

50.   Scientists suspect this is a common occurrence in the vicinity of small black holes.