once met it won't be easily forgotten?此句met为何用过去时?+

..they will be met ..they will be met~ The door won't open.There must be something wrong.此句中为什么用won 强调句 Where was it that you met Tom 英语翻译第一篇：A- You won't believe who I met yeaterday!B- Who?Davi It’s a long time since we met last.(保持句意) We haven't seen ea Once upon a time,a man met a dog and wanted it to help him i It was in that office ____ Alice once worked ___ they met ea it won't be very long before .句型用法 it will be +段时间+before .句 I got on the bus.I met him on it for the first time（合并为一句） I got on the bus.I met him on it for the first time（合并为一句 单句填空：Once ____(see),it can never be forgotten.谢谢了···