I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个...I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个句子不是有

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I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个...I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个句子不是有
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I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个...I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个句子不是有
I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个...
I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个句子不是有两个动词了吗?求详解

I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个...I am very glad to have received the letter中to后面为什么用完成时?to后是不是省略了that.否则一个句子不是有
I主语 am系动词 very glad表语 to have received the letter状语
to后面用了不定式的完成时,表明have的动作的时间在am状态所表示的时间之前；to是不定式符号,后面必须跟动词原形,但to do属于非谓语动词形式,而am是谓语动词形式,两者并不矛盾,是兼容的.

to have done 是to do 的完成时结构，表示先于谓语动词发生。
比如He pretened to have been there before. 他假装之前去过那里。
俊狼猎英团队为您解答，不懂追问！

同学，你可以这样理解,be glad to do sth 是一个固定搭配，而receive the latter 是已经发生过的事情对吧？to在这里是介词，后面的 have received the letter是用来解释glad的原因。有事不用深究他的语法，英语不能只靠语法来学，因为英语有时是么有语法的，就像long time no see,你懂得。...

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同学，你可以这样理解,be glad to do sth 是一个固定搭配，而receive the latter 是已经发生过的事情对吧？to在这里是介词，后面的 have received the letter是用来解释glad的原因。有事不用深究他的语法，英语不能只靠语法来学，因为英语有时是么有语法的，就像long time no see,你懂得。

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I am very glad to see you i am very glad to help you （I am very glad to know you）.啥意思? I am very glad to hear trom you. I am very glad to join in this class. I am glad to be I am glad to your I am very glad to hear that you want toI am very glad to hear that you want to visit Shanghai this summer翻译成中文 I am very glad I have a c===? to visit Hainan We will be glad to attend或者I am very glad to meet you!为什么加will用原型be glad to do请老师指导 I am very glad to do it for you. 句型转换 I am ___ ___glad to do it for you. I am very glad to be your pen-friend翻译成中文是什么 i am very glad（ ）here A to be B be C come I am very glad to get an English book from him.翻译 英语翻译I am very glad to hear that you have been engaged. I am very glad to hear from you and know everything is OK.翻译 I am very glad to hear the news about your book. I am very glad to hear about the news句中的about 需要吗