My father is forty-five year old.有没有错误?

网友回答

My father is forty-five years old.
你忘了在year后加s了.
不懂再问哦.
======以下答案可供参考======
供参考答案1:
不对 forty-five 只能做定语（即修饰词）forty five作表语
供参考答案2:
My father is forty five years old.
My father is forty five year-old.
供参考答案3:
你们也帮我解个答吧！
题目：My father is forty year old 有没有错误？
警告：和你们提问的这个不一样哦！