Example sentences of "be used [prep] a time " in BNC.

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1 The important point is that it should be used at a time when for some reason pressure is to be taken off members of the class — putting them in what is virtually a ‘ spectator ’ role can give them time to recover from what had perhaps been inadequate non-projected work .
2 Instead , they emphasized that the detailed cement sequences revealed by CL could be used as a time framework upon which to locate other diagenetic events , providing a complete ‘ diagenetic stratigraphy ’ .
3 The investigation will explore : ways of asking about sensitive issues ; the prevalence of a number of forms of sexual abuse ( for example , incest , rape , involvement in pornography ) ; whether the abuse was reported to anyone ; what coping strategies were used at a time ; and what the impact has been over time .
4 ‘ So , for instance , you may install Windows in the office , and if you want a compatible spreadsheet to use at home , you can install the DOS version there , provided that only one is used at a time . ’
5 The whole-tone , or hexatonic , scale comprises only tones and no semitones , and so only two different scales are possible ( Example 80 ) : As the mixing of these two scales would introduce semitones and produce an effect of chromaticism , usually , in order to create the particular mood of whole-tone music , only one is used at a time .
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