Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Many birds and animals lived beside the water,which was full of fish.Now there are few birds,animals,and fis

为什么是thirty years ago 而不是thirty years before? Thirty years or so ago什么意思? How was Shenzhen thirty years ago?意思 Thirty five years ago和Thirty five years before有什么区别?不解.. Tom left his home thirty years ago 同义句转换 my grandpa joined the party thirty years ago 改同一句my grandpa___,__-,___ the party for thirty years My father joinde the Party thirty years ago.同意转换My father___ ___ ___the Party for thirty years Tom married Kate thirty years ago.(改为同义句)Tom___ ____ ____ ____ Kate for thirty years . He has joined the party thirty years ago.其中,has ,joined party,thirty years ago分别为ABCjoin不是瞬间动词吗，怎么一个回答也不提。 thirty years on 是什么意思?---------------------------------------|-------------|--------|-------------|--------时间轴 50年前 30年前 20年前 现在 50 years ago,food deliveries was…… thirty years on ,foo how many people ____there thirty years ago 1.will 2.were 3.are 4.will be Thousands of people _______ the earthquake thirty years ago (die) 要原因 These shoes cost (thirty yuan)two years ago.括号部分提问 Over thirty years ago he left his hometown .Over 可以换成什么 These shoes cost thirty yuan two years ago.(对划线部分提问） ------------- thirty years before,they had moved to their cosy house.这里为什么用before不用ago? There (be)not so many people in our town thirty years ago. 英语翻译This story ＿＿＿ ＿＿＿ about thirty years ago