51.   It is a vain hope, mostly, because children notice things, and even in the daylight hours a few of the haggard women are plying their trade.

52.   Its top stars ply their trade in England, Italy and Spain.

53.   It was perhaps from this same enterprising spirit that the shipwreckers plied their trade on shore.

54.   Jeff Conolly, singer-organist of the Lyres, works in used record stores by day and proudly plies the trade of garage rock by night.

55.   Jake is a ticket hustler, a scalper, one of the mysterious thousands who ply their trade in the shadowy cash-and-carry world.

56.   Libertarians might contend that prostitutes should be free to ply their trade wherever they please.

57.   Like itinerant painters, sculptors and woodcarvers plying their trade in the courts of Europe, crafts workers have packed up their bags.

58.   Magicians have plied their trade successfully on the same principle for ages.

59.   Many of the best tailors in the world still ply their trade along this august street in the heart of London.

60.   Most of the ladies have plied their trade in the same beer halls they now enter to preach the gospel of monogamy and safe sex.