问题
                    
Is that Mr. Green? —No, Mr. Green is an ___________ man. But this man is only about _________.
                            A:80-year-old; 18 years old
B:80-years-old;18 years old
C:80-year-old;18-year-old
D:80 years old;18-year-old
                        
                        B:80-years-old;18 years old
C:80-year-old;18-year-old
D:80 years old;18-year-old
正确答案是: