She is a ______ girl .A .eight years old B.eight year old C.eight-years-old D.eight-year-old
问题描述:
She is a ______ girl .A .eight years old B.eight year old C.eight-years-old D.eight-year-old
答
D.eight-year-old
如果中间的year不变复数,必须用连字符把这三个词连起来