Составьте 3 предложения с этих подсказок : •for me it's to decide/ •my choose •i am sure that •but i am not sure that •we can't do without •i think it's quite right про великую китайскую стену

1)I am sure that the Chinese Wall - the largest monument of architecture.
2)But I'm not sure that the Chinese Wall was a good protection for the people of China.
3)I am sure that the Chinese Wall is part of UNESCO World Heritage Site.