Wearesurprisedthata

问题详情：

We are surprised that a ________ girl can draw so well.

      A. ten-year old    B. ten-years-old     C. ten-year-old       D. ten years old

【回答】

C【解析】ten-year-old    作一个形容词，year 不加s，

知识点：构词法

题型：选择题