---Do you know Mo Yan?

---Of course. He won the 2012 Nobel Prize for Literature _________ the age of 57.

A．in               B．at                C．on               D．to

---Do you know Mo Yan?
---Of course. He won the 2012 Nobel Prize for Literature _________ the age of 57

1. A.
   in
2. B.
   at
3. C.
   on
4. D.
   to

---Do you know Mo Yan?
---Of course. He won the 2012 Nobel Prize for Literature _________ the age of 57.