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
答案：A
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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