91.   But states and cities where addicts are a major source of AIDS infections should surely take the hint to move ahead.

92.   But that is a major source of concern for many Democrats.

93.   But the two major sources of offsets may not materialize.

94.   But this has become a major source of pollution, and all three states have new laws that will eventually ban this source of fertilizer.

95.   But these programs have not yet become a major source of new recruits, forensics managers say.

96.   But virtually every major study of the problem by the U.S. government has fingered the coal plants as the major source of the problem.

97.   But when a major source of talent begins to dry up, player-development people shudder.

98.   By the third century B.C., it had become the major source of grain for Athens.

99.   Canadian firms are among the heaviest investors in Cuba, and Canadian tourists represent a major source of hard currency.

100.   Carmichael said most people are unaware that consumer products are a major source of air pollution.