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问题 should 虚拟语气 倒装句用法

He tells her not to expect him certainly by the return coach, nor to be alarmed should he remain gone three or four days.should he remain gone three or four days 这是是倒装句式吗，为什么在这里用倒装?

问题 a piece of negligence 搭配

标题源于新概念：Lesson 58 a spot of botherShe was thinking that she must reprimand her home help the next morning for such a monstrous piece of negligence....请教下这里a piece of 的意思。谢谢！

问题 例句中的不定式充当什么成分

She sued the company for failure to repay debts of more than US$50000.请问例句中的to repay debts of more than US$50000 是充当什么成分? 是表示目的吗?

问题 keep和keep on哪个和until从句连用

They keep watering the filed until they havest.从句这里可不可以换成keep on？

问题 in case的用法

Mr Wood, I am here just in case anything out of the ordinary ____.A.happens  B.happen  C.would happen  D.will happen我觉得选B（should） happen更合适，各位老师觉得呢？朗文词典说在较正式的语境中可以用should do，不一定要用现在时。

问题 请问这里为啥用for,可以用in吗

The PL of a freshly prepared colloidal solution (which shows slight increase duringthe first 24 h) remains unchanged for 2 months in dark conditions

问题 little 的含义辨析和区分？

They seemed devoted to one another. They had little private jokes of their own which, unintelligible to the outsider, amused them enormously. 1) 句中little可以理解成“几乎没”否定的含义吗？ 为什么？2) 为什么不是..., which...? 上句是 of their own which, unintelligible ...

问题 that exchanges covet怎么理解

All that has helped make HKEX more hospitable to the tech firms that exchanges covet.请问这里的that exchanges covet怎么理解？我理解先行词应该是HKEX因为exchanges用了s，但是covet怎么理解呢，它也是个动词啊，我查了词典它没有名词性质啊。

问题 动名词可以作宾语补足语吗

...+ 名词 （即名词作宾语补语）He considers himself an expert on the subject. 他认为自己是这门学科的专家。如果说动名词是名词性质，那为什么有人说动名词不能做宾语补足语呢，因为名词也可以做宾语补足语啊谢谢老师解答

问题 whether后是否为强调句

Others are unsure whether it was the United States or Mexico that decided not to send back families with young children.我自己判断是强调句。又觉得it是人称代词，指代后面的美国或墨西哥，但that作专有名词的限制性定语又解释不通了。谢谢各位大咖专家...

问题 extent to which后面是定语从句吗

the amount, level, or extent to which something happens or is present这是新牛津对degree的解释，请问which后面的是定语从句吗?请老师分析一下!

问题 especially放句首一定要倒装吗

我在书中看到一个句子:Especially is this the case with designations for type of men in modern society.请问各位老师，是不是especially放句首都必须要倒装？可是查牛津/朗文词典都有提示说是这个词不能放句首？

问题 句子成分分析：过去分词的这种用法对吗

曾看到一位学生写过这样一个句子：He often skipped class, kicked out of school by the headmaster. 请问过去分词kicked做什么成分？符合语法规则么？

问题 不定式做目的状语还是条件状语

老师您好，我请教两个问题：1. I feel terrible, I must see the doctor now. 这两句为什么可以连着用？因为口语吗？2. To make an omelet，you need a few eggs. 不定式作目的状语还是条件状语？谢谢！

问题 关于without的非谓语结构

Without gravity to help circulate air, the carbon dioxide you exhale has a tendency to form an invisible cloud around you head.对于上面这个例句，请教各位老师：1. 这里的to help能否换成helping？为什么？2. to help circulate air作gravity的补足语，还是gravity的定语...