为何选B不选A?Not until two months ago ____ that his son was still
为何选B不选A?
Not until two months ago ____ that his son was still alive.
[A] he knew
[B] did he know
[C] he knows
[D] he had known
他是要说直到两个星期以前他才知道他的儿子还活着 .
Not until two months ago 是不是句子状语?如果是,为什么后面要直接跟动词?
我只知道do有强调作用...难道这里do只是起强调作用的...
Not until two months ago ____ that his son was still alive.
[A] he knew
[B] did he know
[C] he knows
[D] he had known
他是要说直到两个星期以前他才知道他的儿子还活着 .
Not until two months ago 是不是句子状语?如果是,为什么后面要直接跟动词?
我只知道do有强调作用...难道这里do只是起强调作用的...
赞 绚烂烟花_evens 幼苗
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这个题目考察的是not until在句首的时候,句子要用倒装的语序.Not until two months ago 是时间状语,提前之后主句he knew that...要变成倒装句,用助动词did代替knew放在前面实现倒装,所以do在这里不是起强调作用的.句子意思是直到两个月前他才知道儿子还活着.
1年前
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