虚拟语气（ Subjunctive Mood）1. if （条件状语从句）从句谓语（ if ）主句谓语形式例句与现在事实相反did/were would/could/should/might+do If I were you,I should study English. 与过去事实相反had done would/could/should/might+have done If you had taken my advice,y...

时间:2025-01-04 04:09栏目:行业资料