Question

6.Eric saved  girl from the lake last night.

   A. an eleven-years-old   B. a eleven-year-old

    C.an eleven-year-old   D. a eleven-years-old

Answer 1

6.C

6.C    eleven以元音音素开头，因此它前面的不定冠词应用an; eleven-year-old意为“十一岁的”，复合形容词中的名词要用单 数形式。