Question

---Is that Mr. Green?

---No, Mr. Green is an ______ man. But this man is only about ______.

1. A.
   80-year-old; 18 years old
2. B.
   80-years-old;18 years old
3. C.
   80-year-old;18-year-old
4. D.
   80 years old;18-year-old

Answer 1

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。