Example sentences of "[been] [verb] that [det] [noun pl] are " in BNC.

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1 It has been shown that many additives are responsible for behavioural problems among young people , such as irritability , clumsiness , excitability and aggressiveness .
2 Until recently it had always been assumed that all calories are the same , regardless of where they came from .
3 It has been suggested that such provisos are not effective in protecting a landlord from the severity of the law and can not be set up as a defence to the claim that by accepting rent the breach of covenant has been waived .
4 It has been suggested that such sediments are characteristic of aseismic continental shelves as they move away from a mid-oceanic ridge .
5 It has been suggested that such terranes are equivalent to oceanic plateaus , which are to be found in the present-day ocean basins and which often rise several kilometres above the adjacent ocean floor ( Fig. 3.32 ) .
6 It has been suggested that some sounds are distracting than others and that there are certain kinds of mental activity that are more at risk than others .
7 Through this project , it has been established that some antigens are indeed absent from the tumours .
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