11.   The protagonist of the novel is a composite of several real-life courtesans who plied their trade among the decadent aristocracy.

12.   But it is up front where the experts ply their trade and both Ian Wright and Les Ferdinand are bouncing with confidence.

13.   Police have received scores of complaints about dealers openly plying their trade in front of small children on street corners.

14.   An army of Web site designers now ply their trade across the country and many Chinese companies have put up Web sites to advertise their goods.

15.   And after dark, on a street where the children of working-class parents once played, drug dealers ply their trade with little fear of jail.

16.   And Frankel did ply his trade in interesting times.

17.   And it was soon thereafter that the omnipresent street noodle vendors began plying their trade.

18.   And when most boys his age were plying their trade on soccer fields or playing roller hockey, Appleby was relegated to the sidelines.

19.   Art and commerce are hardly strangers, least of all in Soho, where galleries and designer boutiques ply their trades to overlapping audiences.

20.   As Alex busies himself with his new acquisition, I survey the premises where Tanen plies his trade.