Kate is girl. She’s very happy at school.
- A.a eighteen-year-old
- B.an eighteen-year-old
- C.an eighteen-years-old
- D.a eighteen-years-old
答案
正确答案:B

eighteen-year-old表示“十八岁大/十八岁的年纪”,是复合形容词,放在名词前作定语,注意其中间的名词要用单数,所以排除C和D。eighteen的读音是以元音音素开头,所以前面的不定冠词要用an。故本题答案选B。

略
