21.He was elected______ president of the company, and _____news came ,in fact, as ______surprise.
A. a; the ;X B. X; the ; a C. a; X; the D. the; the; a
22. The old black woman sat under the pine tree, her grandsons, ______ around her, ______ to an old story.
A. seating; listening B. seated; listened C. seating; listened D. seated; listening