Idont know the girl has long hair ,为什么不对

Idont know the girl has long hair ,为什么不对 为什么The girl has long hair.不能用has? do you know the girl _____ long black hair?a.has b.with c.in I don't know the girl ___ long curly hair.A have B has Cwith Do you know the girl has long hair?在语法上有什么错误? the girl with long hair和the girl has long hair的区别 Do you know the girl with long hair?为什么用with The girl has long hair的否定句 hair,girl,has,the,long,look (.)连词成句 The girl has long hair.（变为否定句） The girl with long hair Doesn't the girl have long hair?（ ）She has short hair.