学帮网It ____ (know)to us all that th earth goes around the sun.
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/17 08:05:57
It ____ (know)to us all that th earth goes around the sun.
It _is known___ (know)to us all that the earth goes around the sun.
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来源：学生作业学帮网 编辑：学帮网 时间：2024/05/17 08:05:57
It ____ (know)to us all that th earth goes around the sun.
It _is known___ (know)to us all that the earth goes around the sun.