问题补充:
Lily is girl .
A. a 8-years-old
B. an 8-years-old
C. an 8-year-old
D. a 8-year-old
答案:
A. a 8-years-old
B. an 8-years-old
(答案→)C. an 8-year-old
D. a 8-year-old
解析:英语中两个或多个单词中间可以用短横线连接起来,起一个相当于形容词的作用,这类单词叫做合成词。其一般构成规则就是其构成单词一般都要用原形。句意:丽丽是个八岁的女孩。结合语境可知本句合成词用形容词作定语,eight词首音素是元音,故不定冠词用an,选C。