51.   It may be that the type of killing of nerve cells in multiple sclerosis requires a different class of drugs.

52.   It still uses a lottery, but one in which different classes of investors have different odds of winning.

53.   Ivy League colleges have long said that they could pick entirely different classes and still have top quality.

54.   My son uses his to take notes for different classes and do first drafts of writing assignments.

55.   Often colliding from different classes, they would work toward a relationship.

56.   Phillips said the Fed board felt that different types of futures contracts and different classes of traders and investors should be subject to varying degrees of oversight.

57.   Payne, meanwhile, now races in a different class than Anderson, but they had competed against each other three times.

58.   She has five different class schedules written out, has circled where each building is on the map, and has left enough time to get to each class.

59.   She saw friends from the seventh grade who had dispersed into different classes.

60.   Social status differences in health persist even when members of different social classes are exposed to similar levels of pollutants and carcinogens in their environment.