问题
选择题
No matter how frequently _____, the works of Beethoven always attract large audiences. [ ]
A. being performed
B. to be performed
C. performed
D. performing
答案
答案：C
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No matter how frequently _____, the works of Beethoven always attract large audiences. [ ]
A. being performed
B. to be performed
C. performed
D. performing
答案：C