Example sentences of "it have proved a [adj] [noun] " in BNC.

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1 I think they will find that most authorities will agree that it has proved a major obstacle but by no means the only one .
2 Such a threat may constitute a bluff in that the prime minister would have more to lose if an election was called than would most MPs ( the PM could lose office : most seats are safe seats and so most MPs could expect to be reelected ) , but nonetheless it has proved a potent influence in determining parliamentary behaviour .
3 Although this technique was originally introduced to investigate the relevance of linear stability theory , it has proved a useful way of controlling flow development and ensuring that the same features are to be observed repeatedly at the same place .
4 A similarity with living organisms suggests itself , and while there are dangers in taking this analogy too far , it has proved a useful model and one which keeps cropping up in organisational analysis .
5 School spokeswoman Mary Thomas said : ‘ This is the first time we have staged My Fair Lady and it has proved a resounding success .
6 It had proved a good move as the sector had avoided the worst excesses of the building slump .
7 Grundy rescued it for the Channel 10 network after it had proved a massive flop on rival Channel 7 .
8 It had proved a big advantage .
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