31.   But some ethics professors say Bayer should allow others to produce the drug.

32.   But the professor said he worried that Democrats might not take seriously warnings from a military establishment that they perceived as overwhelmingly Republican.

33.   But some Hostos professors said the results were not surprising.

34.   But some professors say Harvard has sent mixed signals about the seriousness of grade inflation.

35.   But the two professors have said they will take some time to decide whether to stay.

36.   But these days the killing by Lashkar is too often confused with killing by others, the professor said testily.

37.   By the sheer force of his personality, President Ronald Reagan held the two factions together, the professor said.

38.   Despite the flamboyant rhetoric about pirates and raids, both professors said the fund was not targeting companies for takeover.

39.   Digging deeper into the satisfaction surveys, the professors say the countries least affected by recessions pay the highest unemployment benefits.

40.   Ethnic programs go beyond identity issues, and students who take the courses are of all races, one professor said.