问题
选择题
No matter how frequently __________, the works of Beethoven still attract people all over the world.
A．performed
B．performing
C．to be performed
D．being performed
答案
A。
过去分词短语performed在此相当于they are performed。No matter how frequently they are performed的意思是“无论它们(指贝多芬的作品)被演奏多少次”。