51.   The efforts come amid a country-wide crackdown on tax evasion.

52.   The effort comes none too soon.

53.   The effort comes two weeks after a House committee concluded that a contested California election, which a Democrat won, was marred by the votes of noncitizens.

54.   The efforts come as Chrysler boosts incentives on cars and trucks to stimulate sales as competition increases.

55.   The effort may come to haunt him.

56.   The intensified marketing efforts comes at a time of increasing competition in the on-line industry.

57.   The House Republican effort comes at a time of anxiety over winning seats.

58.   The latest American mediation effort came against a distinctively menacing drumbeat.

59.   The lobbying effort even came to include the first lady, Sen. Clinton.

60.   The market opening efforts come as a result of a new national telecommunications law.