初二 英语 一般过去式与现在完成时和过去进行时的区别 请详细解答...答:时间状语:ago, yesterday, the day before yesterday, last week,last(year, night, month…), 具体时间, just now, at the age of , one day, long ago, once upon a time(很久以前), etc.基本结构:be动词;行为动词的过去式 例句:She often came to help us in those days.I didn'...