there have been many great inventions 为什么用have一个地点不应该用has吗 难道是要跟后面的inventions?不太懂

Many of us have been there. 这句话什么意思? have been there 中文翻译 have been there ·In recent years there have been many changes,可否写成In recent years there were many changes, there have been many books about historythere have been 这里是不是用了倒装?there have been many books about history是用了什么结构?THERE 后面不能加HAVE? There have been many great inventions or things that changed the way we live.翻译 There have been many great inventions.One of the first greatest inventions is still very important There have been many great changes in our city____（最近几年） 英语翻译Another good-bye,and there have been so many!请翻译, there far been many so in this trees have park 的连词成句 I like Beijing very much and I(have been)there many times.考的知识点? there have been many changes in ______（recently）years请解析 为什么要用形容词 How many times have you been there? Only one time 改错 There have been many writers who used their pens to fight things that were wrong. There have been many changes in this place. 这句中为什么用have?主语是什么?用have的决定因素是什么 There have been many changes in this place.这句中为什么用have?主语是什么?用have的决定因素是什么 Many a boy and many a girl ( )there.1.have been2.have gone 3.has been 4.has been 原因,最好每个选项都分析哦 There have been many change in Beijing.(同义句）Many changes ____ ____ ____in Beijing.急