Bus train and bike are the most popular ways of getting to school . 为什么要加个 of?
问题描述：
Bus train and bike are the most popular ways of getting to school . 为什么要加个 of?
答
Bus train and bike 是主语,are 是谓语,the most popular ways 是宾语.
of 是介词 后面的时宾语补足语 宾语补足语要用介词连接