a twelve-year-old和 twelve years old有区别吗?如果有是什么区别

a twelve-year-old和 twelve years old有区别吗?如果有是什么区别 Lucy and Lily are both ________ girls．A.twelve years old B.twelve year old C.twelve-years-old D.twelve-year-old ___should not be allowed to go out at night.a.Twelve-years-old b.Twelve-year-olds c.Twelve-year-old d.Twelve-years-olds ____should not be alowed to go out at night.A.Twelve-years old B.Twelve-year-olds C.Twelve year old D.Twelve years olds选什么 为什么? _____ should not be allowed to go out at night.A.Twelve-years-old B.Tweleve-year C.Twelve year old D.Twelve years olds Today is her （twelve）birthday The baby is only one （year）old He is poor a— he can't a— a hous ‘I am twelve year old.'怎么改错 I'm a twelve year old girl.改为同义句 I'm twelve_____I'm a twelve year old girl.改为同义句 I'm twelve______ _______. Tom was a twelve-year-old boy.he was not a good student. Tony is twelve ( )old.year years ,Tony is twelve ( )old.year years ,包括语法, He is twelve years --------- this year.A old B young C / Tony is a 12-year-old boy.Today is his _______(twelve)birthday 快 Ma Yanli is a twelve-year-old girl.为什么要加- twelve years old twelve year old twelve—years—old twelve—year—old 有什么区别twelve years oldtwelve year oldtwelve—years—oldtwelve—year—old有什么区别 1.Her birthday is on December.2.I'm twelve year old.3.Robert not like the yellow T-shirt. twelve-year-old与twelve years old的区别及用法 Tony is twelve years old.（对划线部分提问）划线部分twelve year old Ben is a _______ student A．twelve years oldB．eight-year-oldC．thirteen-year-oldD．eleven year old