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assoonasassoonas前后句的时态问题?I'llwritetoyouassoonasIgettolonden?I'llletyouhavethebookassoonasIhavefinishedit.像这样的句子,我没能弄懂其时态的用法,比如这两个句子前面都是将来时,而后

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as soon as
as soon as前后句的时态问题?
I'll write to you as soon as I get to londen?
I'll let you have the book as soon as I have finished it.
像这样的句子,我没能弄懂其时态的用法,比如这两个句子前面都是将来时,而后面却是不同的时态,as soon as的前后时态有什么规定呢?
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as soon as连接的时间状语从句中,指未发生的动作,规律是:主句一般将来时,从句用一般现在时代替一般将来时如:I will tell him the news as soon as he comes back.指紧接着发生的两个短动作,主从句都用一般过去时如...