what is the most popular means of transportation in the town?means为什么不用ways?

问题描述:

what is the most popular means of transportation in the town?means为什么不用ways?

means of transportation "交通工具", 这是固定说去.
means 单,复数同形, 这儿是单数. 因为动词为is , 如换成ways, 主谓就不一致了.