Although Mary is woman.she is happy all day．( )A．a 80-years-oldB．a 80-year-oldC．an 80-year-oldD．an 80-years-old 题目和参考答案——青夏教育精英家教网—

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15．Although Mary is __________ woman，she is happy all day．（　　）

A．

a 80-years-old

B．

a 80-year-old

C．

an 80-year-old

D．

an 80-years-old

分析句意：尽管玛丽是一个八十岁的妇女，但他整天都是快乐的．

解答答案：C 根据后面woman妇女，这个名词需要一个形容词来修饰，而"数字+连字符号+year（单数）+连字符号+old"相当于一个形容词，表示"多大的"，同时，80，英语是eighty/eiti/，是一个以元音音素开头的单词，表示"一"是要用an，故答案为C．Mary is an 80-year-old woman=Mary is 80 years old．

点评 "数字+连字符号+year（单数）+连字符号+old"相当于一个形容词，表示"多大的"，Mary is an 80-year-old woman=Mary is 80 years old．

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