单项填空，从A、B、C、D四个选项中，选出可以填入空白处的最佳选项
---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
单项填空，从A、B、C、D四个选项中，选出可以填入空白处的最佳选项
---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
B