l was -----for London last Friday ,but l changed my mind.为什么用to h_英语解答

l was -----for London last Friday ,but l changed my mind.
为什么用to have left?

人气：200 ℃　时间：2020-02-06 06:22:53

解答

Subjunctive mood嘿嘿,就是虚拟语气啊,我本来上星期五就准备走的,（没走成）be to do表打算,