Question

【题目】Liangliang is boy.
A.a 11-year-old
B.an 11-year old
C.a 11-years-old
D.an l l-year-old

Answer 1

【答案】D
【解析】11-year-old 是复合形容词，11（eleven ）是以元音音素开头的单词，前面哟不定冠词 an，故选D。句意是：亮亮是个11岁的男孩。