那个仅五岁的小男孩,但他会写字、会看书.用英语怎么翻译：That is only __ __boy,but he can write and

That little boy is only 5 years old, but he can write and read.

That is only five years old boy,but he can write and read.

That is only a five-yesr-old boy,but he can write and read.
注：five-year-old有连字符连着,所以当做一个单词看待
解释一下楼上的
一楼的：题目只有两个空,明显不对
二楼的：没five years-old这种用法
三楼的：和一楼的犯一样错误

That is only five years-old boy,but he can write and read.