It's very educational to visit Qufu because Confucius was born there,__________?改为反义疑问句

It's very educational to visit Qufu because Confucius was born there,__________?改为反义疑问句
It's very educational to visit Qufu because Confucius was born there,__________?
改为反义疑问句

It's very educational to visit Qufu because Confucius was born there,__________?改为反义疑问句
It's very educational to visit Qufu because Confucius was born there,（isn't it）?
游览曲阜很有教育意义,因为孔子在那儿出生,不是吗?

isn't it?
有关复合句的反义问句，请借助于中文较容易接受。
再如：I think it's going to rain, isn't it?
He told you that the girl was good at English, didn't he?