When her mother died,she was only a girl of ____________.A.ten-year-old B.ten years old C.ten years of age D.ten year-old
问题描述：
When her mother died,she was only a girl of ____________.
A.ten-year-old B.ten years old C.ten years of age D.ten year-old
答
A
记住这个
是我之前英语老师教的
一单单到底
就是说所有的都是单数