高等继续教育 / 电子商务英语
正确率：100%
题型描述: 单选题
We ＿＿＿＿＿＿＿better under more favorable conditions.
A.had done
B.dox
C.did
D.would have done
We ＿＿＿＿＿＿＿better under more favorable conditions.
A.had done
B.dox
C.did
D.would have done
参考答案：
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