Example sentences of "[pron] take many years " in BNC.

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1 It remains to be seen how a rhino , which takes many years to evolve and which has evolved with a horn , will learn to survive without one .
2 This adage was true in the days when pears were grafted onto a miscellany of vigorous rootstocks , which encouraged the growth of great , large trees which took many years before they settled down to cropping .
3 If managers say that they gain their vision and their pragmatic skill informally and from diverse sources , if they see their own development as something which took many years and came from a wide range of contexts , it is unlikely that a short-term substitute can be found which will fit into either the narrow limits of brief in-service training courses , year-long secondments or part-time study in higher education .
4 Consequently they underinvest in long-term projects which take many years before they yield a positive return .
5 Although it takes many years for a child to master the process of reading , once acquired , the skills are comprehensive and flexible enough to cope with a diversity of written material in a variety of fonts and formats ( including previously unknown ones such as unfamiliar handwriting ) .
6 It takes many years for a human child to master the process of reading , even though they already possess established linguistic and cognitive subsystems .
7 It takes many years to perfect and rein-force the practices we saw in these pioneering plants .
8 Even so , it took many years for Ali to ascend to a pre-eminent light in the national consciousness .
9 In China it took many years for the railway to broach the capital .
10 But it took many years for the ordinary people of the area to benefit from tourism in any worthwhile economic sense .
11 Though his union did not entirely disappear in Hull it took many years to recover .
12 It took many years for linguists and sociolinguists to devise ways of getting the best of both worlds .
13 It took many years for scientists studying malaria to realise it was the mosquito that was important , not the messenger from the martians .
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