单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now, listen to the passage.

We learn from the passage that Ben()while doing his master’s degree.

A.became interested in classical Mongolian
B.learned classical and modern Mongolian
C.gave up modern Mongolian
D.mastered modern Mongolian