I think this piece of music is worth.A. listeningB. to be listened toC. listen toD. liste

问题补充：

I think this piece of music is worth.

A. listening

B. to be listened to

C. listen to

D. listening to

答案：

A. listening

B. to be listened to

C. listen to

(答案→)D. listening to

解析：根据语境可知此题考查固定句型结构be worth doing sth表示值得做某事，此句的含义是我认为这首曲子值得一听，又因listen是不及物动词，其后跟宾语是一定要加介词to。故选D。