a twenty year old boy对还是a twenty years old boy对哪个等于 a twenty-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? She seems to be too short for a ( )A.twenty-year old girl B.girl of twenty C.twenty -years- old girl D.girl twenty -year-old twenty-year-old twenty years old 两个怎么用? a twenty-year-old girl 、girl of twenty和girl twenty-year-old有什么区别?具体说下这三个的区别,还有请问一下这道题应该选什么?She seems to be too short for a ------ A twenty-year old girl B girl of twenty C girl twenty-year By next year,he ( ) twenty years old.A will beB will have been 为什么B不行 请问twenty-year-old和twenty years old的区别什么时候该用twenty-year-old,什么时候该用twenty years old She seems very mature for a ．A.twenty-year-old girl B.girl with twenty years C.girl of twenty years D.twenty-years-old girl选哪个说理由 他20岁,是he's twenty year old还是he's twenty years old how to introduce yourself in english,if you are a twenty-year old girl?the introduction must be short. 不是说宾语修饰N的吗She seens to be too short for a _______.A.twenty-year old girlB.girl twenty-year-oldC.twenty-years-old girlD.girl of twenty答案选D请教一下不选C的理由谢谢! __(a) eight-year-old 初二英语几道单选题~（1）________ Emma comes from England.A.Twenty-four-year-oldB.Twenty-four-years oldC.Twenty-four-years of oldD.Twenty four year old(2)My cousin Betty is the _______ of her father's eye.A.appleB.orangeC.catD.sheep(3)— 初二英语几道单选题（1）_________ Emma comes from England.A.Twenty-four-year-oldB.Twenty-four-years oldC.Twenty-four-years of oldD.Twenty four year old（2）My cousin Betty is the ______ of her father's eye.A.AppleB.orangeC.CatD.sheep（3 I am twenty year old.I am _______ a child.A.not longer B.no long C.not any longer D.no longer a eleven-year-old还是an eleven-year-old 是a eight-year-old 还是an eight-year-old John is twenty year old ,but he has only five birthdays.Why? Peter must be twenty years old this year.的一般疑问句简写一下为什么