问题补充：
— I’m sorry you have missed the bus. It five minutes ago.
— What a pity!
A. was leaving
B. has left
C. left
D. leaves
答案：
A. was leaving
B. has left
(答案→)C. left
D. leaves
解析：句意：--我很抱歉你已经错过了公共汽车。它在五分钟前离开的。--多可惜呀！分析时间状语five minutes ago五分钟前，这一般过去时的标志。Leave的过去式为left，故选C.
