Example sentences of "[noun] [verb] [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 From the start , chapels have been a constant source of concern to SAVE , and Northern chapel architecture was the subject of a special SAVE exhibition and report , The Fall of Zion .
6 This Directive has been a major source of conflict between the UK and the European Commission .
7 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 . "
8 The results of assessments and examinations have been a valuable source of feedback to enable teachers to evaluate their teaching material , curriculum , presentation and so on .
9 Neither the researches funded by charities specifically directed towards cancer nor the great drives sponsored by governments and planned by committees have been a fruitful source of new treatments .
10 The advertising of the scheme and the consequent level of public awareness has been a constant source of concern .
11 The Channel Tunnel has been a great source of work , but not profits , in the last five years .
12 The barbarian kings had been a great source of perplexity to the Christian bishops of the early Middle Ages .
13 Since the discovery of significant gas reserves , this PSC has been a major source of gas for the LNG export business from the Bontang LNG plant .
14 Having said that , his aerial ability has been a consistent source of goals .
15 The St. Thomas More Centre in London has been a much-appreciated source of experimental music of an ‘ occasional , nature .
16 Housing of all types has been a significant source of work for Grove in 1992 , ranging from the Housing Association project at St James ’ Hospital , London to the infrastructure at Maidenbower Village in Crawley where the design of the major relief road in the town centre is now about complete .
17 The size of the Strathclyde region has been a constant source of argument .
18 Novels have been a rich source of material for the film industry since the talkies were introduced , and it 's very interesting to see how both classic and contemporary novels require skilled adaptation of the dialogue to make sufficient dramatic impact in a film .
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