As I___(walk)down the street ,I___(meet)Charile.
问题描述:
As I___(walk)down the street ,I___(meet)Charile.
答
As I_was walking__(walk)down the street ,I_met__(meet)Charile.
当我走下街道时,我遇见了Charile.
走是持续动作,所以用ing形式,遇见是短暂性动作,所以用过去式.