单选题 If I ______ out of ink, I would have finished writing the paper.
  • A. shouldn't run
  • B. haven't run
  • C. hadn't run
  • D. didn't run
【正确答案】 C
【答案解析】[解析] 本题考查虚拟语气的用法。本题表示的是与过去事实相反的虚拟语气,从句结构为had done,主句结构为would/could have done。 [译文] 要不是墨水用完了,我就写完这篇论文了。