It is not easy to play a musical instrument well, but if you____

It is not easy to play a musical instrument well, but if you_____, you will succeed in the end.
A、hang up
B、hang on
C、hang about
D、hang over
【正确答案】：B
【题目解析】：hang on表“（在逆境中）坚持，不放弃”之意。