1.   Men in shirtsleeves and women in summer dresses were strolling around the airport and ice-cream vendors were doing a brisk trade.

2.   Since the heatwave started, ice cream vendors have been doing a roaring trade.

3.   Vendors were doing a brisk trade in souvenirs.

4.   At lunchtime, street vendors did a brisk trade with customers who had shucked off their scarves and left their overcoats in the office.

5.   In fact, many customers interviewed on Tuesday said that the vendors did no harm in their current locations.

6.   Realizing the consumer appeal of keeping sales tax at bay, mail-order vendors do their best to please.

7.   So does a vendor with melting ice-cream bars.

8.   Street vendors did a brisk business for a while, but the market seems to have evaporated.

9.   The sidewalks, where they are not chewed up by roadwork, are thick with vendors doing brisk business in everything from pulp fiction to feather dusters to figs.

10.   The T-shirt vendors did a brisk business and the tourist trolleys containing a gaggle of strangers moved slowly through the meringue of mid-day traffic.