My mother Mary is _________________.A．20-year-oldB．20 ye Wap版

试题详情及答案解析

My mother Mary is _________________.

A．20-year-old	B．20 years old
C．20 year old	D．20 year’s old

答案：B

试题分析：句意:我的母亲玛丽20岁了。20-year-old复合形容词，常做定语。20 years old,是个形容词短语，多用作表语.根据题意，故选B。
考点：考查形容词短语。