51.   A successful activity will consist of a series of varied lessons and tasks.

52.   A typical training programme takes the form of a series of workshops.

53.   A whole series of male clubs sprang up which emphasised the elements of male bonding.

54.   Across the fiat bottom a series of deeper pockets had been blasted into the rock.

55.   Actually, Wilson had suffered a series of strokes, starting at age thirty-nine when he was a history professor at Princeton.

56.   After a series of controlled explosions, the van was removed from the scene early yesterday.

57.   After a series of delays and setbacks, the project was finally approved.

58.   After a series of delays, more discussion groups and a conference in Manchester, work started on the actual dummy.

59.   After her Marriage broke up, she had a series of disastrous relationships.

60.   After the opening session we have a series of workshops.