请问这句话的句子结构,not until his health was lost did he know what it was worth

请问这句话的句子结构,not until his health was lost did he know what it was worth If I left the room,he would cry until I returned.这句话为什么是正确的呢?不是not...until结构吗? You may not go out until your work is done.这句话若要改成before连接句子怎么改?You may not go out___your work is done.A.before B.until C.where D.as请问下面的Before your work is done,you may not (can not)go out.这里的before从句 Not until my mother came back,I did my home.3Q为什么这句话是错的?为什么要改为“Not until my mother came back,Did I do my home.为什么要这么改,所有这样的句子都是这样结构吗?再问一个问题,till一般都是用于 not...until...引导的是什么从句例如I won't sleep until you come back这句话是个什么句子? 这句话怎么该?（用简单的英语解释句子）I did not leave here until you called me A poem is not a poem until it is read.这句话是谁说的,不需要翻译句子的回答. She is always feeling not very well 请问这句话对不对给出理由 分析下句子结构 “Consider yourself lucky you are not fired.”请分析一下这句话的句子结构, A man is not old until regrets take the place of dreams.这句话里的not .until 用法对么? 有关Not until 位于句首句子倒装问题.Not until one year did he get used to high school's life.这句话的语法是否有问题? Not until she came back not did I watch TV.这句话的语序对了吗 He didn’t go to bed until twelve o‘clock last night这句话中的didn't go为什么用didn't而不用肯定的词语,句子中didn't是否定的吗not.until是直到. He didn’t go to bed until twelve o‘clock last night这句话中的didn't go为什么用didn't而不用肯定的词语,句子中didn't是否定的吗not.until是直到. 为什么这句话要+am上去- I am not leaving 请问am的句子如何运用 关于语文语言句子方面的三个问题,结构包括语言结构,建筑结构,原子结构,人体结构等等.请问：上面这句话说的正确吗?句子开头 结构包括.开头这样写正确吗?这句话的句型正确吗? not until用法和句子 连句we did not disturb(until) he finished the work请问这两句话中哪个动作发生在前面?