He did it as if he were an expert.从句表示的动作发生在过去,为什么不用过去完成时

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• He did it as if he were an expert.从句表示的动作发生在过去,为什么不用过去完成时
• A good many proposals were raised by the delegates,as was to be expected.这里为什么要用to 不用to be行不行啊?哈哈！我认为两个人的综合起来就对了！即：这里的as was to be expected 是个定语从句，as是引导词，在定语从句中作主语，指代前面整个句子A good many proposals were raised by the delegates；同时was to be 表示过去将来时的被动语态；而as was expected.只表示被动，表示已发生的事实，这里是过去将来时，所以用to be，
• He did it as if he were an expert.从句表示的动作发生在过去,为什么不用过去完成时
• 1、take me fishing这种形式可不可以?不是一直都用take me to fish 2、I didn't manage to do it until you had explained how.这一句中的until引导时间状语从句为什么用过去完成时?不是发生在didn't manage 3、That's something I ought to do.改错.答案说是在something后面加that.但这里的something不是作宾语可以省略吗?4、,Not onle did she make a promise,but she also kept it.这句话中make为什么不用过去完成时?不是发生在keep之前吗?
• he has never borrowed money from me新概念2第11课 原文就不复制了 原文第一句以过去时开头 说明吃饭是在过去的时候发生的 后面又用现在完成时 表示从过去但现在都没借过钱 这不就矛盾了吗?为什么不用过去完成时呢?从过去到过去这才说得通啊麻烦先看原文在回答好吧
• though he was defeated many times,he didn't give up.的从句为什么不用过去完成时though引导的从句能用though having been defeated 表示不?
• 请对before引导的主从复合句的时态判别?（before在……之前）说明：before引导的主从复合句,若均表示在过去发生的事情,从句一般用一般过去时,而主句可以用一般过去时,也可以用过去完成时.例如：Henry visited New York before he left for washington.He had learned English for 3 years before he came here.请看那下面两句.请问哪个是正确的?还是两个均正确?（主要是主句时态表达的合理或不合理）请说明理由.I got there before I met him.I had gotten there before I met him.
• 英语时态提问：大哥大姐们帮我看看下面这句话的时态,搞不清楚了.The inspector pointed out that on the morning of the murder,the 8 o'clock train did not run at all,as it had broken down at Ferngreen station and had been taken off the line.为什么：the 8 o'clock train did not run at all 不用过去完成时?为什么：as it had broken down at Ferngreen station and had been taken off the line.在主句使用一般过去时的情况下,从句使用过去完成时,主句和从句是同时发生的呀?
• 67._____ he _____ that they _____ home tomorrow?A.Does… learn… would go B.Does… learn… will goC.Did… learn… would go D.Did… learn… will go为什么要选B,一般现在时不是表示经常发生的动作吗?66.I _____to know if Mary_____ by train that afternoon.A.want… would go B.want… will goC.wanted… would go D.wanted… will go为何这题要选C过去时？
• 英语 过去完成时 untilI did not understand the problem until he had explained it.过去完成时表示两个动作中较早的过去.这个句子中,明明是先不懂、再解释,为什么had放在解释那边?
• Though in those days,travelling was not as easy as it is today,steam boats carried thousands...（1）其中travelling was not as easy as it is today,在整句话中做什么成份?（2）as easy as it is又做什么成分?（3）travelling为什么要加ing?
• no less important than…和not less important than…哪一个是和…一样重要,哪一个是比…更重要啊?