问题
选择题
The project alongside with the experiment we had once devoted so much time__________ perfectly.[ ]
A. to work out
B. to working out
C. to worked out
D. has worked out
答案
答案：C
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The project alongside with the experiment we had once devoted so much time__________ perfectly.[ ]
A. to work out
B. to working out
C. to worked out
D. has worked out
答案：C