"has been mounted" is a grammatically correct and usable part of a sentence in written English.
For example: The painting has been mounted and is ready to be hung on the wall.
In our garden the best display has been mounted on the back lawn.
Outside a grocery shop, the disembowelled chassis of an old Riley has been mounted as advertising.
That's because the exhibition has been mounted, illegally, in a long-abandoned subway station.
If a television has been mounted to a wall, does it stay or go?
This is not the first time such a museum exhibition has been mounted in the United States.
It is all the more impressive that this has been mounted in the French equivalent of Cardiff.
States have enacted no new laws on the procedure, and no sustained effort has been mounted in Congress to enact a federal one.
One of the fair's most striking displays has been mounted by another specialist, Alice Adam Ltd. of Chicago, a private dealer in German Expressionist prints and drawings.
The expanded version was first seen at Hull Truck in 2009 and this new production by Fifth Word has been mounted for a national tour.
(You expect to hear a voice in the audience asking, "What's a Podsnap, Mother?") The production has been mounted with élan.
And the production has been mounted with wit and handsomeness by its design team: John Lee Beatty (sets), Jane Greenwood (costumes), Brian MacDevitt (lighting) and Bruce Ellman (sound).
