问题
选择题
But for their help, we _____ the program in time. [ ]
A. cannot finish
B. will not finish
C. had not finished
D. could not have finished
答案
答案：D
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But for their help, we _____ the program in time. [ ]
A. cannot finish
B. will not finish
C. had not finished
D. could not have finished
答案：D