Question

Jane is______ high school student in the United States.

1. A.
   an 18-year-old
2. B.
   a 18-years-old
3. C.
   an 18-years-old
4. D.
   a 18-year-old

Answer 1

A
试题分析：句意：Jane是一个18岁的美国高中生。18-year-old 18岁，做定语，修饰后面的名词，注意有连字符时year不用复数；单词eighteen读音以元音开头，所以前面用冠词an，故选A。
考点：考查年龄表达和冠词。