题目内容：

Though i have often heard this song( ),i have never heard you ( ) it.A.being sung;sang Bsang;singi
给我一个选 C 的理由
A.being sung;sang Bsang;singing C.sung;sing D.to be sung;to sing

优质解答

答案应该是：sung,sing1.固定搭配“感官动词heard + 宾语this song + 宾语补足语sung”中,因为宾语this song和宾语补足语动词sing之间是被动关系,而且前面有often,并不强调“正在被唱”,所以只能选用过去完成sung做...