71.   Boeing and airline industry officials insist that the recycled air presents no problems.

72.   Both intentions present problems for the United States.

73.   Both showed that Taylor can present major problems for Tennessee.

74.   All these programs have been ported to the PC system for years now, but for PC users the dichotomy will present a problem.

75.   A long investigation could present problems for the four accounting firms.

76.   A weak dollar presents a problem for stocks.

77.   A Swedish government pamphlet had stated, incorrectly, that a short cross-border trip presented no problem.

78.   A. Lead presents a problem, particularly since you know there is lead paint present.

79.   A woman doctor, her house husband, and a parade of clinic patients present problems ranging from AIDS to angst.

80.   Administration officials warned that the violent cross-currents in the region present difficult problems for outsiders trying to be of assistance.