1.  A similar evolution was taking place in other great American cities.

2.  Drug addiction is now the biggest social problem in American cities.

3.  There have been mass demonstrations in some American cities.

4.  What makes San Francisco so interesting is its architecture, which is completely different from that of other American cities.

5.  This was, New York apart, the first American city I had ever been in where people actually lived downtown.

6.  Even as the President appealed for calm, trouble flared in several American cities.

7.  Although he has appeared in person in several American cities in recent months, conference organizers said security remains a big concern and an electronic link was therefore necessary.

8.  American carriers are able to funnel passengers from American cities to a hub and load up planes bound for Japan.

9.  American cities generally are less congested and have wider roads, with more parking.

10.  American and Chinese officials hope relations will be strengthened by the visit to Washington and other American cities by Zhu, who cuts an appealing figure abroad.