Last night I went to a concert of Chinese folk music．Erquan Yingyue was so sad but beautiful that I sensed a strong sadness and pain under the beauty．

So it was．The musician who played it last night______________ to play the erhu since he ________very young．（　　）

A．	learned；was	B．	had learned；am
C．	has learned；was	D．	learned；has been