__(a) eight-year-old

__(a) eight-year-old He is __,and he has__sister.A.ten years old,an eight-year-old B.ten-year-old,eight year old 是a eight-year-old 还是an eight-year-old Mary is girl,but she knows a lot about science.A.a eight-year-old B.eight-year-old C.eight years old D.an eight-year-old he is ____boy 1.a eight-year-old 2.an eight-year-old 3.an eight-years-old 4.a eight year old eight years old与eight- year-old She is a ______ girl .A .eight years old B.eight year old C.eight-years-old D.eight-year-old eight years和eight-year-old和eight-years-old和eight year oldhe is an____boy?A.eight years B.eight-year-old C.eight-years-old D.eight year old选哪个,我刚刚查了一下,有个人说eight-year-old在名词前,eight years old在be动词后.还 is a （）girl.答案是13-year-old为什么eight-year-old不对 eight -year old 与 eight years old的区别 he is ______boy A.an eight years old B .an eight-year-old两个好像都行啊,奥不懂啊 she has _daughter_NancyShe has _____daughter _____Nancy A.a eight yers old ,name B.an eight-years-old,named C.an eight-year-old,named D.a eight-ear-old,naming lucy is a（）girl.我认为eight-year-old与13-year-old都对,为什么答案选择后者 My son is eight year old.改错 英语eight years oldeight years old eight-year-old eight-years-old eight-years old有什么不同 Have you heard the news?An ____ boy was hurt in tje traffic accident.A.eight-years-old B.eight years old C.eight-year-old D.eight-years old说明原因 She is an eight-year-old girl.=she is a girl__________ ____________. Jim is _____(a/an)eight ——year——old boy.