11.   And when such exchanges must take place in writing, the prevailing philosophy would have them expunged as quickly and ruthlessly as possible.

12.   At the Thrifty Drug Store on Century Boulevard, the exchange took seconds.

13.   Both exchanges are taking steps to go public so they can better respond to increased competition, including challenges posed by electronic trading networks.

14.   A fiery exchange took place on PBS last night and the subject is likely to come up during an AOL Time Warner meeting this week.

15.   A spokesman for the Boston Stock Exchange said that it was unlikely that the exchanges would take the issue to a U.S. court of appeals.

16.   According to published reports, one exchange took place in a Kroger grocery store.

17.   Actually, the wait was not long, but the ensuing exchange took longer than a discussion would have by phone.

18.   But the exchange took no public action against ACLN and did not halt trading.

19.   But the exchanges took on a personal and deeply bitter edge.

20.   But the fact this open exchange is taking place at all is.