问题
选择题
--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
答案
答案：A
80-year-old为复合形容词作定语，year不用复数，某人18岁，用18 years old。选A。