这支歌唱遍了神州大地，唱过了50年悠悠岁月，余音袅袅，一曲难忘。

　　A. This song has been singing all over China for 50 long years. The melody still lingers in the air.

　　B. This song has been sung all over China for 50 long years. The melody still lingers in the air.

　　C. This song has been singing all over China for 50 long years, the voice of which cannot yet be forgotten.

　　D. This song has been sung all over China for 50 long years, the voice of which cannot yet be forgotten.