______ a little earlier, I would hav

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______ a little earlier, I would have caught the train.

  • A.Did I leave
  • B.Would I leave
  • C.Had I left
  • D.Have I left

参考答案:

C

本题考查的是 if 引导的虚拟条件句,省略了 if 要把 had 提前。