ago与before的区别

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ago与before的区别
ago与before的区别

ago与before的区别
ago置于时间段后,只用于一般过去时,表示从现在算起的一段时间以前.
before置于时间段前,可用于一般过去式或过去完成时.
before后接时间点,可用于任何时态
before可单独使用,置于句尾
例：He came back to his hometown 5 years ago.
They have ever been there before,
He always sleeps late , he never goes to bed before nine o'clock.

ago与before的区别 before与ago的区别具体点 ago与before的区别是什么 ago 与before的区别若是10天前：是用ago还是用before before和ago的区别? before和ago的区别. ago 和before 的区别 years ago与before two years的区别. Three years ago与Before three years的区别是什么? long before 和long ago的区别 before和ago用法的区别 before和ago 的用法区别 since、 before、 ago 他们的区别是什么 long ago与long before的区别如题,问两者的区别. Three years ago与Before three years的区别是什么?3Q a few days before与a few days ago区别 before和ago的区别,later和after的区别 2 days ago I went to see him,but his neighbour said that he had left four days before,before 与ago 的区别