问题
                    
He has ___________ daughter_______ Mary.
                            A:a eight years old , name
B:an eight-years-old , named
C:an eight-year-old , named
D:a eight-year-old , naming
                        
                        B:an eight-years-old , named
C:an eight-year-old , named
D:a eight-year-old , naming
正确答案是: