11.   Automakers respond that they are working on electric vehicles and other technologies that may improve fuel economy early in the next century.

12.   A rising surplus could fuel the U.S. to put pressure on Japan at the Group of Seven industrialized nations summit in Denver to cut exports and improve its economy.

13.   A rising surplus could spur the U.S. to pressure Japan at the Group of Seven industrialized nations summit in Denver to cut exports and improve its economy.

14.   Both have been under heavy pressure recently to help improve the economies of poorer nations that receive most of their loans.

15.   But before tackling that, Powell and Armitage argue that Japan must improve its economy.

16.   But by using the electric motor to boost the gasoline engine, fuel economy is greatly improved.

17.   But as sure as they are that this would improve the economy, not all economists are certain it would be worth the price.

18.   But he said deficit reduction would be the best way to improve the economy for everyone.

19.   But if Montenegro is to gain greater status in relation to Serbia, it must improve its economy.

20.   But market participants, hoping for policies to improve the economy itself, were disappointed.