51.   For decades, he has worked to improve relations among people of various faiths.

52.   Fraser urged African-Americans to work to improve their own communities.

53.   He also worked to improve his curveball, and the combination devastated the Pirates.

54.   He and his wife, Valerie Logan, have spent years working to improve the teaching of science from kindegarten through high school.

55.   He acknowledges, however, that UD is working to improve.

56.   Haunted by public perceptions of inferior quality, Chrysler has been working to improve its reputation.

57.   Hawaiian growers have been working to improve the nutritional image for several years, capitalizing on the increasing awareness that not all fat is bad fat.

58.   He also worked to improve the teaching of mathematics in China.

59.   He said he has been slowly and steadily working to improve his operations over many months.

60.   He has worked to improve understanding between American Jews and blacks.