Is the girl (having) dinner with her father and mother at home?为什么要用having.不是第三人称用has吗?这里为什么要用having,

The girl having long hair is mary,请问having是形容词还是动名词啊? The girl is having a good time skating.(改为同义句)The girl is skating ______.（每空一词） after,in,the,having,girl,happy,is,big,meal,a,red?连词成句 after in the having girl happy Is big meal a red（?）(连词成句) Is the girl (having) dinner with her father and mother at home?为什么要用having.不是第三人称用has吗?这里为什么要用having, Who is the girl standing near the car?I remember _________ her somewhere before.A：to having seen B：having been seen C：seeing D：to see The girl is where is the girl Where is the girl Is the girl happy? who is the girl? the girl is jumping. The girl is afraid.. The girl is talking 连词成句two,books,are,these,favorites,mythe,having,hall,in,dining,is,girl,lunch,school,the The girl is cap is this is the pen used by me` 改成从句 这个过去分词谢谢the girl having long hair is mary ` the girl who has long hair is mary.这是写在分次需要用被动语态么？ ___,the girl feels that she is part of a beautiful picture.The west lake is beautiful.A.looking around b.Having looked around C.look around