Example sentences of "has [vb pp] [prep] [art] period " in BNC.

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1 Priddle and Heywood ( 1980 ) regard antarctic lakes as forming an evolutionary series which has developed over the period of about 20 000 years since the ice-sheet was maximal ; this is in any case a convenient way of describing them .
2 Its share of total industrial activity has varied over the period but the figures for the late 1960s are representative .
3 Does he further agree that the time has come for a period of consolidation ?
4 This study examines specific resources — various types of labour , capital and materials — used by the hospital sector to quantify the degree of substitution that has occurred over the period 1951 to 1981 .
5 Answer guide : To provide a guide to the way in which a business has performed over a period of time .
6 Indeed this emphasis has persisted into a period where , in the new media , large-scale organizations are in fact available for analysis .
7 In the case of the urban riots , it is the nature of the television coverage which is in essence inciting other young people in different parts of the country to civil disobedience , whereas in the case of football violence , the implication is that the perceived lack of moral leadership by the broadcasting corporations has led over a period of years to a general moral climate in this country which fails to provide adequate controls over the behaviour of the nation 's youth .
8 An examination of Figure 6.1 reveals that , whilst each of the groups considered has gained over the period 1979 — 89 ( due to the tax and benefit changes discussed above ) , the greatest gain was made by the richest tenth of the population .
9 However , it is clear that the divergence between the North and the South has widened during the period 1981 — 7 ( see Figure 9.5 ) .
10 There is general agreement among the writers on this subject and in the media that the divergence between North and South has widened during the period of Conservative government .
11 the failure has continued for a period of , or periods amounting to , at least five years ,
12 Our sub-leasing of of surplus retail area has continued in the period and combined with a small programme of retail park developments will enable our retail area grow , sorry will enable our rental income to grow .
13 It has to be admitted that the railway has passed through a period of financial difficulty but now appears to be settled and operating a successful service of trains .
14 CHESAPEAKE BAY Has created over a period of about 17000 years .
15 The following fall into this category : ( i ) step-parents ; ( ii ) anyone with whom the child has lived for a period of three years within the last five ; the relevant period of three years need not be continuous but must not have ended more than three months before the application is made ; ( iii ) where the child is in care , anyone who has the consent of the local authority ; ( iv ) where the child is not in care , anyone who has the consent of each person with parental responsibility for the child .
16 My belief is that our good practice has evolved over a period of more than 50 years and that it has developed in classrooms through the dedicated expertise of British teachers enjoying the relative freedom traditionally allowed within our education system .
17 And so it was that all Hollywood 's difficulties led somewhat accidentally to what Ralph A. Bauer has described as a period whose movies ‘ were perhaps as varied and intriguing ’ as the movies produced in any comparably short period in American history .
18 The figures below show how credit use has changed over the period covered by these three surveys .
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