2019-2020学年外研版高中英语选修6课件:虚拟语气2
2019-2020学年外研版高中英语选修6课件:虚拟语气2第2页

2. 与过去事实相反: If +主语+__________, 主语+ __________________ ___________ . If I _____________ hard, I _______________ in the exam. (not study, fail)

had not studied

would have failed

had done

would/should/could

/might have done