Question

【题目】He is ________，and he has ________ sister.

A. ten years old；an eightyearold B. tenyearsold；an eight years old

C. ten years old；eightyearold D. ten years old；a eightyearold

Answer 1

【答案】A

【解析】句意：他今年10岁了，他有一个八岁的妹妹。ten years old十岁了，表示年龄；ten-year-old十岁的，是形容词，修饰名词，year不能用复数，故B不对；eight-year-old八岁的，形容词，因为eight是元音开头，故用an修饰，选A。