The bus__ I went to Chengdu broke down on the road.A,by which B,by that C,by it Dthat 为什么选A
问题描述：
The bus__ I went to Chengdu broke down on the road.A,by which B,by that C,by it Dthat 为什么选A
答
A,by which
定语从句,介词后面不可以用that
i went to Chengdu by bus
定语从句中把by提前,用which搭配