There have been great changes in our city since 1978.have been 后加的不是动词过去分词么这个句子的中have been 的用法

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Therehavebeengreatchangesinourcitysince1978.havebeen后加的不是动词过去分词么这个句子的中havebeen的用法Therehavebeengreatc

There have been great changes in our city since 1978.have been 后加的不是动词过去分词么这个句子的中have been 的用法
There have been great changes in our city since 1978.have been 后加的不是动词过去分词么
这个句子的中have been 的用法

There have been great changes in our city since 1978.have been 后加的不是动词过去分词么这个句子的中have been 的用法
这里不是被动词语态呀
there be 结构的现在完成是就是 there have /has been (这里 changes 是复数,故用have)
意思是:自从1978年以来我们城市有了很大的改变.
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