There ___has been_______ great changes in our country since 1979.(be)这里填has been对吗?应该用完成时吧?

来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/29 10:48:38
There___hasbeen_______greatchangesinourcountrysince1979.(be)这里填hasbeen对吗?应该用完成时吧?There___hasbeen____

There ___has been_______ great changes in our country since 1979.(be)这里填has been对吗?应该用完成时吧?
There ___has been_______ great changes in our country since 1979.(be)
这里填has been对吗?应该用完成时吧?

There ___has been_______ great changes in our country since 1979.(be)这里填has been对吗?应该用完成时吧?
用have been吧
changes是复数

没错 有个since一般要用完成时的

对的

应用have been,因为后面的名词是复数形式.