1.   But access to the sites where arctic-alpines grew often demands considerable rock-climbing expertise, so Evan touches upon our world again.

2.   The Marine Pollution Control Unit has considerable expertise in dealing with oil spills.

3.   This has enabled M.P.s to build up considerable expertise in their chosen fields.

4.   A number of foreign banks have developed considerable expertise in the area of project finance.

5.   An effective choice of emergency surgical procedure may require considerable surgical expertise.

6.   Teachers have already developed considerable expertise within the classroom to provide a good basis upon which to build effective communication outside.

7.   The support post proved successful enough to establish Manchester as a national datasets centre with considerable expertise in handling and analysing Census data.

8.   Only countries with considerable expertise in information technology will be able to achieve economic gains due to this demand.