问题补充:
Listen! Do you hear the little girl the violin in the next room? It sounds beautiful.
A. is playing
B. play
C. to play
D. playing
答案:
A. is playing
B. play
C. to play
(答案→)D. playing
解析:根据前文Listen!,听!可知本句描述的是正在进行的动作,根据Do you hear可知句子不缺少谓语动词,故选D,现在分词作宾语补足语表示正在进行的伴随性动作。