The old man came, a big dog.A. followedB. following byC. and followingD. followed by

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A. followed
B. following by
C. and following
(答案→)D. followed by
解析：本题考查非谓语动词。句中逻辑主语为the old man，与动词follow之间为被动关系，故用过去分词作状语。句意：老人来了，一只大狗跟在后面。