I want my leg! I want to run! I want to jump!, a girl cried in the hospital in Libya(利比亚).
A. 5-year-old
B. 5-years-olds
C. 5 year old
D. 5 -years -old
网友回答
(答案→)A. 5-year-old
B. 5-years-olds
C. 5 year old
D. 5 -years -old
解析：由名词构成的合成词，每个单词一般采用单数形式，中间用短横线连接起来。表达一个近似于形容词的含义，因此正确选项为A，五岁的。