She is a ______ girl .A .eight years old B.eight year old C.

she is an eight years old 还是she is an eight-year-old girl对 为什么是she is an eight-year-old girl?she is an eight-years-old She is an _____ girl.[A.eight years oldB.eight-years-old] a girl of 后面加eight years old还是eight-year-old?为什么,麻烦详细一点 She is an eight-year-old girl与She is 8 years old的同义句. She is an eight-year-old girl.=she is a girl__________ _____ She is only eight years old () she knows a lot. My sister is a beautiful girl.she is eight years old.（合并） My silina is a girl .she is eight years old.合并为一句话 She is eight years old. is a （）girl.答案是13-year-old为什么eight-year-old不对 She is a____girl.A.9 years old B.9-years-old C.9-year old D.