题目内容：

The old man walked in the street,______.
A.followed by his son B.followed his son
B.and following his son D.and followed by his son

优质解答

followed by his son 这里充当伴随状语.用来说明这个老人走在大街上,被他儿子跟着
B 缺少介词by 或者将逗号去掉,这时句子的意思就变了是老人跟着他儿子
C 时态不一致,语法也错误
D 去掉and 或者 将逗号去掉意思和B改完后的一样了