Example sentences of "has been [verb] [conj] [art] [num ord] " in BNC.

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1 The first is that of the relationship between theory and practice , about which much has been heard since the Second World War as higher education has been used more and more as an entry route by professions seeking higher status .
2 It has been claimed that a third brother settled in America and that one of his descendants founded the internationally known Piper Aircraft Corporation but research has shown this to be false .
3 This trick has been used since the last few years of the Vietnam war , and does not rely on any particularly outlandish circuitry .
4 Secondly , it has been suggested that a second organisational control device used by management in the face of potentially recalcitrant workers is the use of the internal labour market .
5 Recently this has been challenged , and it has been suggested that the third which was allocated was one-third of the taxation due on a property .
6 In the US it has been held that the Fourth Amendment governs not only the seizure of tangible items , but extends also to the recording of oral statements .
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