why something is so popular in the world?与 why is something

why something is so popular in the world?与 why is something why english is so popular? there is always___ something in the world Why Valentinels Day is so popular in China? Why is cosmetic surgery so popular?in the words of one man w 芭比,why is it so popular? Why 《Jane Eyer》 is so popular why is chinese food so popular? why is bilingual education so popular why is western fast-food so popular why Jane Eyer is so popular? Basketball is so popular in the world that ----- people play