问题补充：
—Did you hear about the air crash? I feel so lucky!
—Yes．If you that flight, I speaking to you now．
A. were taking; wouldn be
B. took; wouldn have been
C. had taken; wouldn be
D. had taken; wouldn have been
答案：
A. were taking; wouldn be
B. took; wouldn have been
(答案→)C. had taken; wouldn be
D. had taken; wouldn have been
解析：此题重点考察if引导的虚拟语气，表示与过去事实相反的虚拟条件句。其句子结构为：从句：If + 主语+ had +过去完成式动词+ ……主句：主语+ would (should, could, might) + have +过去完成式动词+……
