根据事故责任判定的基本原则，大事故由( )调控判定，并报告铁道部备案。

A．铁路局
B．发生事故的单位
C．安监部门
D．公安部门

—Sorry to have interrupted you. Please go on.

—where was I?

—You ____ you didn’t like your father’s job.

A．had said

B．said

C．were saying

D．had been saying