71.   But the problem was that the uncertainty had been high.

72.   But the uncertainty is worse this year because the proposed cuts are the most severe in history.

73.   But the tenants expect a difficult labor, fraught with uncertainty over the safety of the area and the uncertainty of what is to come.

74.   But the uncertainty is something the boards will have to consider.

75.   But the uncertainty may be about to end.

76.   But the biggest uncertainties are over where the real opportunities lie.

77.   But there is considerable uncertainty in the market.

78.   But there is uncertainty about what will happen if the high pressure weakens.

79.   But there was uncertainty whether his arm could hold up to the rigors of relief pitching.

80.   But there is an uncertainty hanging over this arid and mountainous land.