Example sentences of "is [vb pp] at a time " in BNC.

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1 Because only one record is examined at a time , it is possible to test the descriptors against very complex Boolean conditions , expressed in terms of the descriptors desired by the user , to obtain a match .
2 You need to ask not only whether the actual care is specifically designed for that individual , but also whether it is given at a time that is chosen to suit the person , and possibly family and friends who may be involved .
3 If the tenant is let into possession or the lease is completed at a time that makes this inconvenient , the commencement date should be back-dated to a convenient date .
4 When a member of the Royal Family becomes pregnant , an announcement is made at a time of their choosing . ’
5 Such information implies a distance of 16 thousand million light years and that the galaxy is seen at a time 83% of the way back to the Big Bang .
6 It is true that the writing-up of a thesis may be its author 's first , and most difficult , exercise in scientific communication , and it is written at a time when the author may be scientifically immature , and lacking the communication skills which will develop later .
7 ‘ 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 . ’
8 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 .
9 Only a single kid is born at a time ; twins are extremely rare .
10 This is spoken at a time when the media are documenting despair amongst Cork Street galleries and recognition by major collectors such as the Saatchi family that the bottom has fallen out of the market for modern art .
11 Once colour is knitted at a time and you change colour every two rows .
12 ‘ This must take place in the early hours of the morning in order that the narcotic is delivered at a time when there is little public activity .
13 Because of problems with disparate styles of music , however , an occasional Sunday afternoon service is held at a time when white people who are committed to this kind of outreach are free to attend .
14 The report is published at a time of intense debate between EC member countries about the future of agricultural subsidies .
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