The train ________ the station when we arrived.
A.would leave
B.left
C.had left
D.will leave
网友回答
C解析这是一个过去完成时态的考题。在包含 when,as soon as,before,after,until,now that等连词的从句中,如果主句谓语和从句谓语表示的过去动作是在不同时间发生的,那么先发生的动作通常需用过去完成时表示。例如:When I woke up it had already stopped raining.我醒来时雨已经停了。I hadn't had any English before I e here.我来这里之前没学过英语。