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问题 主句是过去时 宾语从句为什么不用过去完成时

...，从句的时态要后退，下面的句子 我不能理解：I checked the orders instantly. That’s when we realized we made a mistake.犯错误这个动作发生在 realized 之前，为什么不用过去完成时？我了解主句是said，told 那种，但是像 realized 这种，如何...

问题 be it time, energy or help怎么理解

Be sensitive to how much your friend can and can't offer you--be it time, energy, or help -- and don't step over the line.请问这个句子里的be it time, energy or help怎么理解？这是一个什么语法点？感谢解答！

问题 及物动词+宾语+副词/介词 结构里的副词/介词做什么成分

take+sb/sth + adv./prep. We'll take the matter forward at our next meetingcarry something + adv./prep. I never carry much money on me.请问老师加粗部分是作状语还是补语？是结合具体句子充当成分不同还是这个结构里充当固定成分？

问题 empty-handly为什么要改成empty-banded

Delegates of the two countries met at length, but went home empty-banded.我想知道empty-handly为什么要改成empty-banded?

问题 关于过去式和完成时的问题（详见问题描述）

A: I hear you _____(get) lost on your way to the hotel.B: I don’t know how I did it. I have been here a million times.为什么这里要填 got 而不填写 have got？题目来自于《英语语法新思维（中）》P162

问题 关于be a generous lot的短语句式分析

During two years of the pandemic, Americans continued to be a generous lot.在疫情的两年里，美国人依然慷慨大方。这里的 be a generous lot怎么理解的？这里的lot是作后置定语修饰generous？那么 be a generous lot中的 "a" 可不可以去掉，变成be generous lot...

问题 for 是否引导原因状语且位于句中

（专八04年改错）Congressional committees also have the power to compel testimony from unwilling witnesses, and to cite for contempt of Congress witnesses who refuse to testify and for perjury those who give false testimony.cite sb. for sth. 似乎更为常见，因此我将 for contempt of Co...

问题 用于句首的 Not since... not是否定转移还是省略

Not since the 1968 Olympic Games has a medals ceremony caused such a storm of booing. 自1968 年奥运会以来，没有哪次颁奖仪式引起过如此哗然的一片嘘声。请问：not 是否定转移还是省略？

问题 shall need 与 should need 用法辨析

If your car______any attention during the first 12 months, take it to an authorized dealer.A. shall need  B.should need这题练习题答案为A, 但网上有许多人给的答案是B。我个人比较倾向于A 感觉并不是虚拟语气，因为车子在头12个月也是有可能需要被“...

问题 为什么against time是副词短语而不是介词短语

It was a real race ______ time to get the project done. Luckily,we made it. A. over B. by C. for D. against 答案给出的解释是against是副词短语，为什么不是介词短语啊?感谢老师的回答！

问题 动名词的having done

...etted not having gone to university.  /I appreciate having been given the opportunitiy to study aboard. 都是完成时动作先于谓语动作。 然而，像这样的句子，Do you remember John and his father coming to see us last Christmas？这里的coming to...肯定是发生在remembe...

问题 几个关于of的表达

... 7 days. （这里的of  7 days做后置定语，表示同位关系）the last 90 days of historical data.  近90天的历史数据  是否也是historical data 做后置定语？ 3 days of moments  朋友圈仅三天可见，这个是否也是of moments做后置定语？为...

问题 to communicating with others在这里是做什么成分

The Internet also provides us with a cheap alternative to communicating with others.这句中的to communicating with others是做什么成分？我把它理解为目的状语对吗？to coummunicating能否用不定式的形式即to coummunicate来代替呢

问题 为什么主语用to do 而不是doing

... development and eradicate hunger and poverty remains a major challenge of the world and a common responsibility of mankind。促进农业发展，消除饥饿和贫困，依然是世界面临的重大挑战，也是全人类肩负的共同责任。请问为什么是“ To promote agricultural deve...

问题 分析：It has been mostly sharks and seals.

They find all sorts of sea life along the beaches but it has been mostly sharks and seals.老师好！这道阅读理解题里的划线部分it has been mostly sharks and seals怎样翻译和分析语法现象？谢谢！