一道关于虚拟语态的问题but for these interruptions,the meeting ____have finished earlierA.should B,would C,will D.must为什么选B,A为什么不行这个题不是对过去的虚拟么,对过去的虚拟should .would 不都可以吗

一道关于虚拟语态的问题but for these interruptions,the meeting ____have finished earlierA.should B,would C,will D.must为什么选B,A为什么不行这个题不是对过去的虚拟么,对过去的虚拟should .would 不都可以吗 虚拟语态的问题虚拟语态中,一,二,三人称都要用were吗? 虚拟语态有关注意问题 but...for的虚拟语气用法 求解释一道关于英语时态和语态的语法问题!The company_______a rise in salary for ages ,but nothing has happened yet.A.has been promised B.has been promisingC.is promising D.promised我选的是：A.这是为什么啊?promise 应该不 But for和otherwise的虚拟语气该怎么用? but for 的虚拟语气只能用于将来时啊? 问一个关于虚拟语态的问题是不是助动词一定要用were啊,如果是人称是他或者她 也用were吗? but for引导虚拟语气的句子紧接着but for的部分是不是就是从句 关于虚拟语态的1道题~If he were you,he ______(not be)so confident.应该填wasn't还是weren't?我好象弄混了,后面的第1.3人称要不要也用were的呀?(虚拟语态中)越快越好,但一定要正确哦! 虚拟语态有什么要注意的 虚拟语气中but for,if not,but that的意思及用法 but for 一定要和过去的虚拟连用吗?例句：We( couldn't have made such big progress) but for your help.括号里是题目要求填的部分括号外的部分没有动词,没办法判断要用现在时的虚拟还是过去时的虚拟阿还 请帮忙解决英语问题（与虚拟语气有关）He would be not able to recognize Wang Yingying but for his seeing her white Nike shoes that have been always on her feet.主句的虚拟语气形式对吗? 关于动词时态语态的练习题1.Although he has lived with us for years ,he ____ us much impression.A.hadn't left B.didn't leave C.don't know D.hasn't left 但我认为是C2.I used to drink a lot of tea but these days I _____ coffee.A.prefer B. 关于虚拟语气的问题是不是如果从句与事实相反,就要用虚拟语气,然后主句也要用虚拟语气?我见过一道题We had hoped he would stay longer.从句是虚拟语气,然后主句也要用虚拟语气,那么We thought it wo if 虚拟语态if 表示如果时 它引导的句子 是不是都要用虚拟语态 一道关于be said to Mary is said______in the supermarket for 5 years,but I don't know why she resigned last month.A.to have been working B to work C to be working D to have worked但是有个很严重的问题,首先Mary显然现在没在那里工