Though I have often heard this song , I have never heard you it.
A. being sung; sang
B. sang; singing
C. sung; sing
D. to be sung; to sing
网友回答
A. being sung; sang
B. sang; singing
(答案→)C. sung; sing
D. to be sung; to sing
解析：考查非谓语动词做宾语补足语的用法，hear+宾语+宾补，宾语补足语可以是不带to的不定式，表示听到某人做了，如果宾语和宾语补足语是被动关系，就用过去分词做宾语补足语，第一空this song和sing是被动关系，用sung，第二空you和sing是主动关系，用sing，选C。
考点; 考查非谓语动词做宾语补足语