Example sentences of "[noun sg] have been a [adj] source " in BNC.

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1 In many countries in the early stages of industrialization agriculture has been a major source of foodstuffs , exports and labour , but the degree to which agriculture in Japan contributed capital over a sustained period is unusual .
2 Ever since it first appeared , the tractor , like the motor car has been a potential source of danger and death .
3 This question of pre-versus postsynaptic plasticity has been a major source of polemic in recent years , but with most theoreticians favouring the postsynaptic side as the main site of plasticity .
4 The annual reports of the Law Society , and the comments and advice of the Lord Chancellor 's Advisory Committee on Legal Aid have been a valuable source of information and of recommendations for changes in policy ( whether accepted or not ) .
5 This Directive has been a major source of conflict between the UK and the European Commission .
6 Furthermore , " The Governors inspected the School building and the darkness of the large room having been a frequent source of complaint and of expense in the use of gas [ for lighting ] , Captain Sykes offered at his own cost to employ an architect and have the windows lowered to a suitable height . "
7 The advertising of the scheme and the consequent level of public awareness has been a constant source of concern .
8 The Channel Tunnel has been a great source of work , but not profits , in the last five years .
9 Having said that , his aerial ability has been a consistent source of goals .
10 The size of the Strathclyde region has been a constant source of argument .
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