Example sentences of "they have [been] used [prep] " in BNC.
Next page| No | Sentence |
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| 1 | In England sea urchins are especially easy to collect from the Cretaceous chalk , where they have been used as one of the fossils for dating the rocks . |
| 2 | They have been used to ‘ track ’ party policies over the postwar period and to see how far party 's electoral promises have been fulfilled in government . |
| 3 | They have been used for thousands of years , one of the earliest references to salt being in the Old Testament when Lot 's wife was turned to salt in the desert . |
| 4 | But few dogs make better companions than a well trained Shepherd , and they have been used for a wide variety of tasks , aside from their traditional role of protecting flocks of sheep . |
| 5 | They have been used for many years as propellants in aerosols , in the production of some foam packaging and as coolants in refrigerators . |
| 6 | They have been used with great success in the analysis of repeated measures data and ar increasingly coming to be used to efficiently analyse complex sample surveys . |
| 7 | They have been used in the UK for many years and legislation allows the addition of 5 per cent of CBE fats ( about 15 per cent of the fat phase ) , and the product can still be called chocolate . |
| 8 | The real test is whether they have been used in all the cases where there has been flagrant abuse , and I have reason to believe that the traffic commissioners are doing their job competently in that connection . |
| 9 | Although finite state grammars are weak they have been used in computational systems . |
| 10 | Some of them have been used as an indirect way of seeing the file by parents denied access for themselves . |
| 11 | Look no further than the row of foundations — most of them have been used for about a week , which is as long as it takes to realise that they are wrong for your skin . |