There(be)great change in our country since 1979

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There(be)great change in our country since 1979

There(be)great change in our country since 1979
There(be)great change in our country since 1979

There(be)great change in our country since 1979
has been
since 1979 表明用完成时
不过应该是great changes 吧,那么前面就填写have been
保证准确率!
不明白就追问!

填【has been】,后面有since表示是从1979年到现在,要用现在完成时态,change单数,故用has而不是have。
放心采纳,希望再次帮助到你!

since要求全句使用现在完成时,答案:
have been
另外,你恐怕把理应复数的changes错打成了单数形式的change吧?