问题
阅读理解
By the time we arrived at the station, the train has left.
A B C D
答案
D has left改为had left.
因为从句用了一般过去时，这里的动词要比前一动作前，所以用过去完成时。
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By the time we arrived at the station, the train has left.
A B C D
D has left改为had left.
因为从句用了一般过去时，这里的动词要比前一动作前，所以用过去完成时。