11.   Growing concern has been expressed over the pollution of the North Sea.

12.   He dismissed newspaper reports that he had expressed concern about the possibility of a recession.

13.   If this is the case, presumably you can openly express your concerns about any aspect of work to him.

14.   In her last days the poet expressed concern for her father.

15.   Many people expressed concern, but few were willing to help.

16.   Many teachers express concern that even their more able pupils do not fulfil their potential in the subject.

17.   Most of them were offering support and expressing concern about the well-being of center Marcus Camby.

18.   Mr. Tom King I have received many such representations and I well understand the depth of feeling on the part of those expressing their concern.