As a result of destroying the forests, large ____ of desert ____ covered the land.
I haven’t read ____ of his books, but judging from the one I have read I think he’s a very promising writer.
—Why are the tax collectors so busy? —Many people prefer to have their tax forms completed by a professional rather than ___.
He ____ writing the paper now. He hadn’t written a single word when I left him ten minutes ago.
—Watch! —I ____ but ____ I ____ anything unusual.
—“Dear Frank, when will our wedding be?” —“Ah, when? God knows.” He said, and ____ away from her, walked rapidly away.