单选题
your support, we might have succeeded in performing the last.
A、
If we have
B、
If we should have had
C、
If we had
D、
Had we had
【正确答案】
D
【答案解析】
[分析] 这是一个与过去事实相反的虚拟条件句，从句省去了if，用倒装结构，相同的例子还有：Had he worked harder，he would have got through the exams. Had Jack known the truth, he wouldn't have lent her any money.
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