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

He is twelve years old. I am twelve years old. l am twelve years old She is twelve years old.意思 He is twelve years old 提问 求翻译：she is twelve years old. I am twelve years old 英语疑问句 Tom is twelve years old.就画线部分提问提问是twelve years old 改为复合句：Tom is twelve years old.Linda is twelve years old ,too.Tom is ()()()Linda I’m twelve years old.对画线部分提问,画线是twelve years old Tony is twelve ( )old.year years ,Tony is twelve ( )old.year years ,包括语法, The boy is twelve years old对twelve years old提问 My sisther is twelve years old,对twelve years old提问 old ,twelve, li lei, old years is .连词成句 连词成句 old,twelve,Li Lei,old years Lucy and Lily are both ________ girls．A.twelve years old B.twelve year old C.twelve-years-old D.twelve-year-old 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 twelve-year-old与twelve years old的区别及用法