This piece of music is worth .A. to listenB. to listen toC. listeningD. listening to

网友回答

A. to listen
B. to listen to
C. listening
(答案→)D. listening to
解析：be worth doing是“值得做某事”，故排除AB；listen to the music只不过这里的music在前面，故to不能省略。所以本题选D。