Example sentences of "have [adv] [be] a controversial [noun sg] " in BNC.
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| 1 | That a computer can be taught to work like that has always been a controversial proposition ; even today there are observers who believe that it is impossible to build a machine ( at least with current programming techniques ) that can plan even remotely as well as a human . |
| 2 | The role of gold has always been a controversial issue in the international monetary system , but with the advent of floating its importance as a source of international liquidity has been reduced in several ways . |
| 3 | It had long been a controversial issue and its approval had been delayed for years because of worries about the environmental consequences and the cost of the project . |
| 4 | Finally , some 520 million year old teeth found in fossilised form have long been a controversial subject — did they come from an early vertebrate creature ? |
| 5 | Local rates have long been a controversial source of local authority income . |