a 11-year-old boy还是an 11-year-old boy

a 11-year-old boy还是an 11-year-old boy a twenty year old boy对还是a twenty years old boy对哪个等于 a twenty-year-old boy? a five-year-old boy还是a five-year old boy 是a one-year-old boy还是an one-year-old boy _____(a/an)1-year-old boy _____(a/an)8-year-old boy _____(a/an)11-year-old boy_____(a/an)13-year-old boy a thirteen-year-old boy的中文翻译 a thirteen-year-old boy=什么? 一个10岁的男孩是“a ten-year-old boy还是a ten years old boy? 请问:是a four years old boy?还是a four year old boy?正确要肯定的 a four-year-old boy可以说成a four-year old boy A 还是AN English boy.He just ___eleven- year -old boy.A a B an Cthe D 不填 He is ________ 8-year-old boy.a还是an8-year-old不是修饰boy的吗？不是应该用a one-year-old boy 前面是填a还是an呢? three-year-old boy 这样的前面用a还是an?两种我都看过.. My little brother is ____.A.a six-years old boy B.a six-year-old boy C.a six-years-old boyD.a six-year old boy a eleven-year-old还是an eleven-year-old 是a eight-year-old 还是an eight-year-old a fourteen years old boy 在句子中对吗是a fourteen -year- old boy