No matter how frequently __________________ the works of Beethoven always attract large audiences.
A. performed
B. performing
C. be performed
D. being performing
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1. There are still some people in the world who ______________ cold, hunger, and insufficient clothing .
A. result from
B. suffer from
C. prevent from
D. derive from
We must adhere to (坚持)the________that everyone must be treated fairly.
A. principle
B. principal
C. property
D. procedure
3. This difficulty did not in the least shake his ________.
A. thought
B. opinion
C. determination
D. idea
4. The ancient Egyptians ________the hour as one-twelfth of the time from dawn to dusk (黄昏).
A. imagined
B. measured
C. defended
D. defined