A girl named Dong Xinyi looked after her disabled father.
- A.three-year-old
- B.three-years-old
- C.three years old
- D.three year old
答案
正确答案：A
知识点：复合形容词
three-year-old表示“三岁大”，是复合形容词，放在名词前作定语；three years old也表示“三岁大”，不能放在名词前作定语，常用来作表语。本题缺少定语，所以选A。B和D语法错误。
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