题目

题型：不详难度：来源：

Tony is twelve          old, but his sister is only one          old.

A．year; year

B．years; years

C．years; year

D．year; years

答案

C

解析

表示“年龄多大”时用“…years01d”结构。前面的基数词是one就用year old：大于1就用years old。因此选c。