问题补充:
The old couple often take a walk after supper in the park with their pet dog them.
A. to follow
B. following
C. followed
D. follows
答案:
A. to follow
(答案→)B. following
C. followed
D. follows
解析:考查with复合结构:with+宾语+宾语补足语,因为their pet dog和follow them之间是主动和进行关系,用现在分词做宾语补足语,句意:老夫妇经常在晚饭后散步他们的宠物狗跟着他们。选B。