Question

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

Answer 1

答案C

C。第一空填 sung，因为 song 与 sing 是被动关系；第二空填 sing，因为 you 与 sing 是主动关系。