.. To her disappointment, what she had devoted herself to ____ in nothing but failure.
He has been working too hard.______, he needs to have a rest.
—How does their factory________ their products? —Through a separate sales company.
He was too busily occupied _____ to the show.
We must _____ a new chair for the broken one.
My camera can be________ to take pictures in cloudy or sunny conditions.