71.  But obvious political reasons also explain why the new measures, in particular the lifting of the bank holiday, have not yet taken effect.

72.  But she had always felt fine, until a year ago, when, for no obvious reason, life just lost its zest.

73.  But some refugees and relief workers say there are other less obvious reasons for the trend.

74.  But the most obvious reason is that tornadoes are rare, and a central city is a very small target area.

75.  But there is no obvious reason to buy, except hope that the price will rise.

76.  But they said there were some obvious reasons that applied to at least some of the five states where the trend was most pronounced.

77.  But to the best of my recollection, nobody ever mentioned the idea of trying to promote human rights in Saudi Arabia, and for a very obvious reason.

78.  But there are obvious reasons.

79.  But there is still no obvious artistic reason for the proliferation of museum sites.

80.  But, for obvious reasons, lenders are unwilling to loan to the carriers, which already have heavy debt loads.