That piece of music sounds quite familiar. Who _____ the piano upstairs?

A.has played

B.played

C.plays

D.is playing

答案及解析： D

解析：

考查时态。句意：这段音乐听起来很熟悉。谁在楼上弹钢琴？可知下文描述的是正在发生的动作，故用现在进行时态，选A。