a long time ago 的过去时

a long time ago 的过去时 A long time ago a long time ago 、long long ago、once和once upon a time的区别 a long time ago 的同义词 Not that long ago.请问这里的ago是什么意思?上句是：That was a long time ago. A Long Time Ago 歌词 A long long time ago 歌词 过去时的agoLong long ago=o_____upon a t_____;不久前：some t_____ago；不久前：a w____ago 分析一个简单的语法,一个句子The last time I saw the dawn was a long time ago.为什么用was而不是is?我的理解是is可以用来表示陈述状态,可以不用过去时. 选词填空：at a time,a long time ago,a short time ago,for a long time,after a time 1.I’ve know希望高手能在今晚8点30时把答案发给我,我会拼命加分的,今晚8点50要发给我的老师选词填空：at a time,a long time ago,a i stopped a long time ago. long long ago 与 once upon a time 的用法区别 long time ago 前面一定要加 a 也就是一定是 a long time ago long long ago=Once upon a time吗? that was a long time ago 帮忙分析下句型~,是不是a long time 做表语,ago做time的宾补? Long Time Ago 歌词 求long time later long time ago long time befor 的翻译 long long ago与long time ago的区别它们的意思