His ability is never in doubt----the question is _______he is prepared to work hard.
I don't know why you're so concerned—it isn't your problem______.
Julie was ______ with Joanna for applying for the same job.
He failed to ______ himself to the new environment.
—What do the letters “DOS” ______? —Disk Operating System.
_____ is believed that the betterknown companies spend about 70 per cent of the total cost of the product itself on packaging!