Several musicians say they consider it the greatest musical position written.
A. already
B. once
C. before
D. ever
网友回答
A. already
B. once
C. before
(答案→)D. ever
解析:考查副词:A. already已经,B. once曾经(有一次),C. before从前,D. ever 曾经,和最高级连用,表示“迄今为止最…”,句意:几个音乐家说他们认为这是迄今以来最伟大的音乐作品。选D。