1.   These were the first exchange traded financial derivatives.

2.   An official explained that the first Shanghai exchange followed the Western color pattern, but it made no sense to the clientele.

3.   And if things go even more wrong, this capital city could be ground zero in the first nuclear exchange in history.

4.   Discovery, carrying two groups of astronauts, is scheduled to blast off on Thursday for the first crew exchange on the new station.

5.   During the first visible exchange of fire Thursday, a cook came out from behind his counter to watch.

6.   During the first visible exchange of fire Thursday, a fry cook came out from behind his counter to watch.

7.   He said the exchange was well placed to be an international commodities center as it is the first major exchange in the world to open for each trading day.

8.   His amendment prompted the first partisan exchanges of the debate.

9.   In January of this year, he authorized the first exchange of U.S. and Vietnamese diplomats.