谁能帮忙总结一下ago与before的区别,最好能全面一点用ago,before填空1,Imethimthreeyears2,Ihadmethimthreeyears。3．Irememberseeingyousomewhere2years.4．Ihavereadthenovel

Question

谁能帮忙总结一下ago与 before的区别,最好能全面一点
用ago ,before 填空
1,I met him three years___________
2,I had met him three years ________________。
3．I remember seeing you somewhere 2 years______.
4．I have read the novel______.
5．She said she had met Tom two days______.
6．She has been there since 3 years_______.
7．How long_____did you get to know her?
8.I called him up last night，but his mother told me he had left for Wuhan two days____
9 She said that she had married him five years _______.
10,He said he had arrived here a day ___________
11,He said he had arrived here the day___________
12,I graduated from the college twenty years ________.
13,I was asked what I was doing a month __________.

Answer 1

ago 表示从说话时算起的若干时间“以前”,常和一般过去时连用.
before往往表示从过去某时算起的若干时间“以前”,含其引导的时间状语的句子的谓语动词用完成时态.
例如：I called her an hour ago,but her mom told me that she had left home five minutes before.
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