这道题选A还是选C( )she was a child, she has lived in San Francisco.A.When B.From C.Since答案是C,为什么 怎么翻译的

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这道题选A还是选C( )she was a child, she has lived in San Francisco.A.When B.From C.Since答案是C,为什么 怎么翻译的
这道题选A还是选C
( )she was a child, she has lived in San Francisco.
A.When B.From C.Since
答案是C,为什么 怎么翻译的

这道题选A还是选C( )she was a child, she has lived in San Francisco.A.When B.From C.Since答案是C,为什么 怎么翻译的
C.Since
因为主句用的是现在完成时.since的意思是:自从----以来.since引导的从句,主句必须要用完成时态,要么现在完成时,要么是过去完成时.
这是固定用法.
这道题肯定不选b,因为from是介词,后面需要用名词和动名词,不能跟句子.when不能用于完成时态.
自她还是一个孩子以来,她就一直住在旧金山了

过去完成时,现在说的是以前的完成的事,意思是当他是小孩的时候,他是住在旧金山的

选C,要是选A的话后边应该是过去式,题目中是现在完成时,所以是C,意思是打她是个小孩起,她就住在旧金山。

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