先把这个句子断一下吧：
Fair Oaks Transit trains / were / back on schedule / Monday / after a mudslide disrupted last Friday morning's commute.
主语是trains,主语之定语是Fair Oaks Transit,这表示Fair Oaks Transit 号列车（就跟我们中国和谐号一样）,谓语是were,这里是系动词.没有直接的宾语,可当系表结构吧,表语是back on schedule,就是排回班次列表内了,Monday是表语对应的后置时间定语,也就是周一的时间列表.after a mudslide disrupted last Friday morning's commute.是状语,就是经历上周五通勤时所遇到的泥石流blabla.
分析挺详细吧?码字更辛苦.请采纳哦