not until last week ___the sad news A did i know B did i knew

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not until last week ___the sad news A did i know B did i knew
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not until last week ___the sad news A did i know B did i knew
not until last week ___the sad news A did i know B did i knew

not until last week ___the sad news A did i know B did i knew
答案选A
not until ……did sb do sth:直到……某人才……,属于倒装结构.

A. 考察的倒装句的用法
原句是:
I didn't know the sad news until last week 知道上周我才知道那个不好的消息
这样是否理解了?

A
首先这个句子要用倒装,这个毋庸置疑~
两个选项都是~
其次,助动词后面加动词原形~
所以选A~
祝:学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!

正确:A
Not until...必须倒装,又did已经体现一般过去时,故knew要还原为原形know。