These two particular areas have proved increasingly important as the years have gone by.

But even this area proved to be not entirely without interest.

The area also proved a useful source of clay.

This area has proven itself as a great location for activities and games.

The areas are relatively small but can prove useful when trying to locate your fellow gang members.

This area also proved to have no one hiding in it.

This area has proven to be especially popular with the college crowd.

Unfortunately, as you are absolutely right to complain, progress in other areas has proven more difficult.

The area just south of Baghdad has proven particularly hard to control.

The area became increasingly run down and proved hard to let.