【题目】_________ more about Chinese culture, Jack has decided to take Chinese folk music as an elective course.
A.Learn
B.Learned
C.To learn
D.To be learning

【答案】C
【解析】句意：：为了更多了解到中国文化，杰克决定选择中国传统音乐作为选修课。这里是动词不定式作目的状语。故选C。