Example sentences of "keep a careful eye [prep] " in BNC.

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1 He changed taxis twice within three blocks , keeping a careful eye on the black Plymouth sedan which cruised sedately along behind both vehicles .
2 Thereafter , ‘ fly the line ’ , keeping a careful eye on drift and timing for the first quarter of the route , and replicating whatever heading is required for the next three- quarters , noting the times to the quarter-points .
3 ‘ It 's about one per cent , is n't it ? ’ asked Belinda , keeping a careful eye on the road as she drove .
4 So far he had been quiet , staring into the darkness , though keeping a careful eye on Sir John .
5 A spokesman for Mrs Mary Whitehouse 's National Viewers and Lis-teners ' Association said : ‘ We hope TV watchdogs will keep a careful eye on this programme . ’
6 It keeps a careful eye on stock control to make sure that inventories are maintained at ‘ sensible levels ’ .
7 He or she must be free to keep a careful eye on the operation of the analytical system and the data it produces .
8 There is no need to become over-anxious about the subject of diet for the elderly.We simply need to keep a careful eye on things , to see that they are eating a good variety of food which includes plenty of protein , dairy products and fresh fruit and vegetables , together with some roughage , which is often best taken in the form of a bran cereal , and which will , in many cases , completely eliminate the problem of constipation and ease that of piles .
9 Make sure you keep a careful eye on it — it 's a gem and just as precious !
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