Example sentences of "long [be] [vb pp] [that] [adj] [noun pl] " in BNC.
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1 | As for the second , it has long been recognised that successful institutions are distinguished by clear aims . |
2 | Thirdly , it has long been recognised that written documents produced in the past often have a special quality , which is not possessed by school textbooks or the writings of later historians . |
3 | It has long been recognized that five factors control the nature of soil development : climate , parent material , topoy , organic activity and time . |
4 | It has long been known that skilled smallholders , owning their own plots of land , can produce very much more from an acre than large-scale farmers with labourers who can not possibly have the same dedication . |
5 | It had long been known that some metals gave colours to flames ; but this was an unreliable test , because colours are hard to describe exactly , and because they are usually masked by a brilliant orange-yellow . |