71.   The example of the Mississippi Delta suggests that work remains to be done.

72.   The Mexican delegates welcomed the proposals, but said much work remained to be done.

73.   The Times has established an online form and a toll-free number for free-lance contributors who want their work to remain available.

74.   The work remained on The New York Times best-seller list for a year.

75.   The work remained a standard textbook at design schools for decades after its first publication.

76.   Their work remains the most influential field studies of its kind ever conducted.

77.   There remains obvious work to be done with the Clippers.

78.   Though his work remained controversial within historical linguistics, it was warmly embraced by population geneticists.

79.   Whether a more free-spending approach will work remains an open question.

80.   While EPA officials agree that air quality has improved, they say much work remains to be done.