you play piano when you were young?
A. Can, /, good
B. Could, /, well
C. Could, the , well
D. Can, the, good
网友回答
A. Can, /, good
B. Could, /, well
(答案→)C. Could, the , well
D. Can, the, good
解析：play表示“弹、拉、演奏”等意思，后接表示“乐器”的名词时，名词前须用冠词，；修饰olay应用副词 well（good是形容词），故选C。