问题
选择题
Once he has determined _____ something, no one can change his mind. [ ]
A. to do
B. doing
C. to have done
D. having done
答案
答案：A
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Once he has determined _____ something, no one can change his mind. [ ]
A. to do
B. doing
C. to have done
D. having done
答案：A
