Mary did not go to bed until she __all the housework Ahad finishedBhas finished CfinishedDfinishes_百度知道
Mary did not go to bed until she __all the housework Ahad finishedBhas finished CfinishedDfinishes
为什么不选A答案是C...
为什么不选A
silentherbs
silentherbs
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比如：It was not until he came that I left. I didn't go to bed until I finished my homework. 因为你前边有个did你看到没，所以可以确定until后面也用一般过去时 整个句子都是一般过去时！ until后面是没有规定具体要用什么时态的。。所以只能看前半部分。。前面是什么时态，后面就是什么时态。不懂还可追问！
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此句话的翻译是 知道她完成所有的作业，她才去睡觉。 这句话就是个一般过去式的句子。如果是完成式的话，强调产生的影响。 另外，说一点 until 用于否定句时，常与短暂性动词连用
是短暂性动作。
until 用于肯定句时，常与延续性动词连用
eg：she worked unitil 11:30.
work 是延续性动作
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I did not go to bed until my son had finished his homework.这句话从语法角度来看对吗?我们老师上将说是对的,
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not until的用法始终记住一句话,从句比主句早一个时态,主将从现,主现从过,主过从完.
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Alexander DeLuca, M.D.
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Road to Recovery
Audrey Kishline started Moderation Management,
a self-help group that says problem drinkers don't have to give up
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Dennis Murphy;
Dateline, NBC N Air date: . Posted: .
[Identifier:
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K Moderation Management
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For Audrey Kishline, having a husband and two kids, being famously
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