Question

—Why was he late for school yesterday?— He overslept. By the time he got to the bus stop, the b.

—Why was he late for school yesterday?— He overslept. By the time he got to the bus stop, the bus ________ already ______. A．has; left B．had; left C．was; leaving D．have; left

Answer 1

B

试题分析：句意：昨天他为什么迟到了？——他睡过头了。他到达公交车站时，公交车已经开走了。结合语境可知下文描述的是一直持续到过去某时的动作，故用过去完成时态，选B。