Example sentences of "it have [be] [verb] that [adj] " in BNC.

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1 As it has been assumed that equal amounts of lactulose or other carbohydrate malabsorption will produce equal changes in breath H 2 excretion , rice starch malabsorption has been calculated as g malabsorbed carbohydrate according to the formula :
2 Until now it has been assumed that social changes are determined by events which have the same status in the sense that they may all be conditions and consequences of each other .
3 Some children are able to discriminate in this way between people they know and people they do not ; while it has been noted that institutional children tend to show less anxiety at a strange face since there is no regular " caretaker " .
4 It has been seen that French wartime planners believed that France could gain from European economic co-operation .
5 It has been seen that academic institutions have to abide by procedural fairness when applying disciplinary measures , as do trade unions , and it has now been held that prison Visitors and governors exercising their disciplinary functions are subject to certiorari for breach of natural justice .
6 It has been observed that Christian fortresses in Syria on numerous occasions failed to act as any sort of check on the movement of Muslim armies .
7 Once it has been acknowledged that linguistic differentiation is a particularly salient manifestation of the tendency of communities to mark out gender distinctions by a variety of means , it is difficult , given the general orientation of current sociolinguistics , to progress further in finding a convincing explanation of linguistic sex-marking .
8 More generally , it has been contended that international comparisons can be a trap :
9 And it has been said that local authorities are not always very sympathetic to acting as a choice of career and sometimes obtaining a grant may be more difficult if a student has evidently changed his or her career tack .
10 It has been said that old age comes as a surprise : I was then eighty but had yet to realise it .
11 It has been calculated that Allied 's breakup value is about 1,000p a share .
12 To the extent that a scientific speciality or discipline is bound together by the rules of an existing ‘ paradigm ’ defining the rules for ‘ puzzle-solving ’ with an existing ‘ normal science ’ , it has been argued that major scientific change often comes from outside the existing specialist group — not untypically through the ‘ migration ’ into the group of innovative outsiders .
13 It has been argued that continuous agriculture could be maintained if a closed nutrient cycle could be achieved , the canopy not perforated so that leaching would be prevented and the forest floor would not deteriorate , and if nutrients were added to equal those exported as crops and the diversity of species maintained .
14 It has been argued that catholic schools do not do the job for which they were set up , that is educate Roman catholics sufficiently to keep them in the church .
15 However , it has been argued that certain clauses operate at an earlier stage so as to define and restrict the extent of the contractual obligation undertaken and so prevent there being any breach of contract .
16 It has been argued that judicial review should never be refused because of the existence of an alternative remedy if the applicant can establish a ground for judicial review .
17 It has been argued that human wealth is so illiquid that the greater is this h ratio , the greater will be the demand for money to compensate for the limited marketability of human wealth .
18 It has been argued that romantic love is a relatively modern phenomenon , reserved in earlier times for the delight of troubadours and the illicit pleasures of the rich .
19 It has been argued that corporate efficiency in privatised industries has improved , not just by an exposure to market forces and an acceptance of the profit motive , but by the extra freedom given to managers .
20 It has been argued that high house prices have prevented workers from moving to new jobs in the South East , leading to recruitment difficulties and increased costs for employers in the region .
21 It has been argued that British membership of the EEC imposes a legal not simply a political limitation on Parliament .
22 Throughout this paper it has been argued that separating special education policy from mainstream education policy creates an artificial division between special and mainstream education .
23 It has been argued that special attention should be focused upon the resilience and potential for recovery of the soil profile in view of the inputs induced by man ( Trudgill , 1977 , chapter 8 ) , and the importance of the problem is underlined by Toy ( 1982 ) in a review of accelerated erosion when he concludes that such erosion can be considered to be the pre-eminent environmental problem in the United States by virtue of its widespread occurrence and cumulative cost .
24 It has been argued that double-hulled vessels can be more hazardous in high-speed collisions than single-hulled vessels .
25 It has been recognised that personal effectiveness in all aspects of life , including work , requires the development of certain broad transferable skills .
26 To explain these associations it has been hypothesised that dietary fat increases the colonic concentrations of soluble free fatty acids and secondary bile acids .
27 For cervical cancer it has been suggested that physiological reasons make it more difficult to take good smears from older women .
28 It has been suggested that similar reactions may take place on background sulphate aerosols in the Antarctic stratosphere , but as yet there has been no unambiguous evidence for these reactions in the absence of polar stratospheric clouds ( although there have been observations of ozone loss attributed to volcanic aerosols ) .
29 It has been suggested that increased permeability is the result of changes in the epithelial cell mediated immune response .
30 Although such behaviour corresponds closely to the descriptions of other feral children , it is impossible to know whether these children might have developed similar patterns of behaviour even if brought up in greater contact with people , and it has been suggested that feral children might have been abandoned by their parents because of their behaviour problems .
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