Great changes has been 的同义词

Great changes has been 的同义词 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? great changes Great changes In the past three years there great changes in Beijing.A.are B.will be C.has been D.have been 为什么用复数啊? great changes in China GREAT CHANGES HEVETAKENPIACENICHAINITHELASTFEWYEAR翻译 shanghai has experienced such great changes that everyone can recognize that it is no longer__.A.what it used to B.that it used to like C.tha same it used to be D.what it used to be great changes (have taken)place in China sinace 1987为什么用have 而不用 has The last few years has seen great changes in this country对吗 in the past few years there( )great changes in my hometown为什么不用has been The book was written in 1946,__the education system has witnessed great changes.Awhen Bsince when Great changes have taken place there and my hometown has become more and more beautiful是什么意思? The book was written in 1946,( )the education system has witnessed great changes. My hometown has (e ) great changes in the past 20 years.填空.. Our city has changed a lot.的同义句There ( ) ( ) great changes ( )our city.Great changes ( ） （ ） （ ）in our city. 1.Great changes has taken place since he lived in Shanghai.2.Home is home,be it homely or not.1.这句话对吗?有语法错误吗?应如何改?2.这句话的语法结构怎么划分? “There has been great changes in computers in the last few year”为什么是 has been不是have had