he's walking__zhongshan road.A.along B.on选啥?为啥?

he's walking__zhongshan road.A.along B.on选啥?为啥?
he's walking__zhongshan road.A.along B.on选啥?为啥?

he's walking__zhongshan road.A.along B.on选啥?为啥?
A
多谢了!

walk on 走下去；继续行走
walk along 散步；向前走；沿着…走
题目中是散步的意思
希望能采纳，谢谢