1.There has been a huge i--------- in pollution of the environment 根据首字母完成句子

There has been a misunderstanding. In the last few years,there _______ great changes in the country.A.had been B.were C.have been D.h说明为什么 为什么不用has 几道简单的英语单选题,请解析一下1._____ a fine day,we decided to go out for a picnic.A.Having been B.Being C.What D.It being2.There has not been a great response to the sale,______?A.dose there B.hasn't it C.hasn't there D.h there has been a time和there had been a time有什么区别? 1.There has been a huge i--------- in pollution of the environment 根据首字母完成句子 It has been there since a t_ years ago . there has never been a better time to esgapt 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 has been的用法 there has been a need for sth 不懂为什么是there has been?真是什么时态呢,. there has been...为什么要加been? He knows a lot about Egypt.I heard he( )there before. A.has been B.has gone C.had been. ---Where is your uncle?---He to Hong Kong.He there for many times.A.has gone;has beenB.has been;has been C.has gone;has gone D.has been;has gone There has always been a huge number of restaurants.为什么用has? The meeting ___when I got there.A has begun B has been on C had begun D had been on Hi there,It has been brought to our attention by a constituent,that your group has been using the mr.smith____here for there weeks a :has already been b :has already been being这题选哪个?为什么? 现在完成时has been里的been怎么翻译there has been a big earthquake 这个句子怎么翻译 been 又怎么翻译呢?