Linda can't attend the party at Tom's house at present because she is preparing a speech for the party at Marie's house tomorrow.
A. being held; to be held
B. to be held; held
C. held; being held
D. to be held; to be held
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(答案→)A. being held; to be held
B. to be held; held
C. held; being held
D. to be held; to be held
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