He was always _______ for knowledge, and at last became an expert in the field of art.
Tom is________a common worker. How disappointed his parents are to see he hasn't gained great achievements!
A writer cannot write good works without practice________more than a director can direct excellent plays without experience.
—I'll talk to my son Bill about it as soon as possible. He usually listens.—We need________listening. We need action.
In the dream Peter saw himself________by a fierce wolf, and he woke suddenly with a start.
Helen had to shout________above the sound of the music.