before 用作连词时、后接从句 什么时候+doing 、什么时候+过去分词1.Li Lei often smiles at me before ____( talk) to me.2.Mr.Smith can buy a small present before ____(invite) to a party.写出答案、并说明

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before 用作连词时、后接从句 什么时候+doing 、什么时候+过去分词1.Li Lei often smiles at me before ____( talk) to me.2.Mr.Smith can buy a small present before ____(invite) to a party.写出答案、并说明

before 用作连词时、后接从句 什么时候+doing 、什么时候+过去分词1.Li Lei often smiles at me before ____( talk) to me.2.Mr.Smith can buy a small present before ____(invite) to a party.写出答案、并说明
before 用作连词时、后接从句 什么时候+doing 、什么时候+过去分词
1.Li Lei often smiles at me before ____( talk) to me.
2.Mr.Smith can buy a small present before ____(invite) to a party.
写出答案、并说明原因 、讲解 .(最好通俗易懂 )

before 用作连词时、后接从句 什么时候+doing 、什么时候+过去分词1.Li Lei often smiles at me before ____( talk) to me.2.Mr.Smith can buy a small present before ____(invite) to a party.写出答案、并说明
1)talking,这里省略了主语he,完整的句子是before he talks to me.talk在完整的句子中用的是主动语态,所以省略主语的时候要将动词形式变为doing的形式.
2)invited,这里省略了主语Mr.Smith,完整的句子是before he was invited to a party.invite在完整的句子中用的是被动语态,所以省略主语的时候要将动词形式变为过去分词的形式.

before 用作连词时、后接从句 什么时候+doing 、什么时候+过去分词1.Li Lei often smiles at me before ____( talk) to me.2.Mr.Smith can buy a small present before ____(invite) to a party.写出答案、并说明 before用作连词,后面一般用什么时态,噢噢.没有固定的是么,I need one more stamp before my collection ----(complete)completed.为什么呢. She entered the station twenty mintues before the train was due.twenty minutes before 后为何可加从句 before这里是副词还是连词 as做连词,引导时间状语从句时,后接一段时间还是一点时间? before,after后接什么举例说明 the moment用作连词时相当于什么?when,while?加什么动词,延续性动词?瞬间性动词? in order that 后接的从句叫什么从句 It seemed that后接什么从句 before 后接从句还是分词?NCE3 21课有一句:How many unsuccessful attempts did he make before becoming Champion of all England?他经历了多少次尝试后才成为全英国的冠军?before 后接的现在分词作什么成分?宾语?还 宾语从句的连词该怎么用?连词后应跟什么?主谓宾有什么变化?讲通俗点,越容易理解越好! before后接动词时的用法 until和before作为连词引导时间状语从句有何区别? before引导时间状语时从句一般现在时.主句什么时态.一般将来时还是将来完成时. before后加什么时态 如何看待the reason is后的表语从句连词 介词before后接什么before you read为什么不是reading?before是介词后面应该接动名词, 主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句分别是什么.一一举例.还有连词后一定是从句吗? 有人说the same as中的as是介词,有的说是连词,有的还说是关系代词,有人发表过The place doesn't look the same as it was before liberation中的as是关系代词,我认为as后接的是宾语从句,所以as是介词,