i ()him five years ago.是不是填met?还是have met

英语翻译I knew him two years ago.[ ]I met him two years ago.[ ]I l have met him three months ago "it was many years ago that I met him"其中的 ago 为什么必须有呢? Five years ago, I met her in a shopping center. I was walkin Have you met him?Yes,I have just met him.I had never met him as 做什么成分 i remember the man as him whom i met years ago have you met him? 哪个对为什么? 谢谢 I have met him two days ( before ) I have met him have never met还是never have met? I first met Harry fourteen years ago.为什么 fourteen years ago 英语翻译一,我去年遇见过他.该怎么说?是该说I met him last year还是I have met him la I have never met him before.为什么用met而不是meet