Example sentences of "[adv] or [adv] [art] [noun] [to-vb] " in BNC.

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1 But sooner or later the need to use some aspect of statistics becomes obvious .
2 Retest foods once or twice a year to see if they are still a problem .
3 The Congress , which partly superseded the former USSR Supreme Soviet , is elected for a five-year term and convenes once or twice a year to decide on major constitutional , political and socio-economic questions .
4 The valuation of trading stock will normally take place only once or twice a year to coincide with the date of the end of the builder 's financial year or half-year , although larger companies may prepare quarterly accounts .
5 As part of the improved conditions Bilal 's partner started taking us through the kitchen once or twice a week to sit with them and get a bit of sun .
6 However , to maintain this amended behaviour pattern , it may be necessary to repeat this training once or twice a week to ensure that it is permanently reinforced .
7 The group will meet once or twice a month to discuss business coming before the council and to decide on a collective attitude .
8 It is as if governments , having been given the gifts of technology , set them loose without an idea of how or even a wish to restrain them .
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