Example sentences of "[prep] which have [adv] [prep] " in BNC.

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1 There have been striking changes in biological productivity at higher trophic levels in the North Pacific , the mechanisms for which have yet to be fully explained .
2 But that time must yet remain a few days ahead , while everywhere lay in the throes of a natural disaster — the nature of which had yet to be determined — and while the snow still fell as thickly as it did .
3 The main points were ( i ) a tax of 0.3 per cent on financial transactions ( ITMF ) , in force until 1994 , but not applying to wage cheques , pension payments and popular savings accounts ; ( ii ) to fight tax evasion an instruction to banks to report in specific cases and at the Finance Minister 's request all movements of individuals ' and companies ' accounts ; ( iii ) the simplification of the tax system with the elimination of three social contributions and their replacement by valued added tax ( VAT ) of between 7 and 10 per cent ; ( iv ) the elimination of taxes on manufactured products , fuel sales and additional income , and their replacement by a selective tax ( the rate of which had yet to be specified ) on cars , alcoholic drinks , fuels , electricity and telecommunications ; ( v ) the elimination of the separate collection of taxes by state and municipal governments and another by municipal government , so that all taxes ( except the ITMF ) would be collected by the federal government and shared with the states and municipalities , expected to produce a real increase in their revenues of 9 and 17 per cent respectively ; and ( vi ) a ban on the contracting of fresh debts by the Federal District , states and the municipalities until the year 2000 .
4 Presumably , RasGRF is recruited to the membrane by a different mechanism in response to incoming signals , the nature of which has yet to be determined .
5 Whatever lingering nostalgia he might have felt , Delves chose to look ahead , to concentrate on the new business opportunities that Mr Akayev is keen to encourage in his ‘ little Switzerland ’ , most of which has only in recent months been opened up to foreigners .
6 There will be a transitional period , details of which have yet to be released , during which the amount of the repayment within an accounting period will be reduced .
7 Apart from famous chateaux like Sanssouci and Rheinsberg , the book covers lesser known country houses , medieval monasteries , historic villages and small towns , as well as twentieth-century villas , estates and utilitarian buildings , most of which have yet to be ( re ) discovered by a wider public in the West .
8 Indeed , the Secretary of State for the Environment has said that we should remove the county council layer of government and move down to all-purpose districts , the size and boundaries of which have yet to be decided .
9 Literary studies in action approaches the study of literature in the same way that a comparatively naive undergraduate reader approaches it : as a conglomeration of linguistic and literary forms , functions and meanings , all operating at once and all of which have somehow to be deciphered in order to gain access to the text , and explained in order to facilitate the production of adequate essays .
10 Overall , the search for ‘ a ’ cure for cancer has resolved itself into a large number of separate questions , many of which have still to be solved .
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