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问题 in five minutes的介词问题

他会在五分钟后回来。英文：He'll be back in five minutes.他会在五分钟内回来为什么还是He'll be back in five minutes.这样是不是就产生歧义了呢，希望老师解答，感谢 

问题 独立主格无动词结构的问题

The old man stood there, ____.A. with back against the wall B. with his back against the wall C. with back against wall D. his back against wall请问老师CD选项应改为back against wall这种说法是否正确呢，有无什么依据可以参考呢?

问题 对时间状语参考点的疑惑

The train was supposed to arrive an hour ago.The train was supposed to have arrived an hour ago.请教老师，这两句话的an hour ago 指的都是现在说话时的一小时前吧？它们可否解释为suppose时的一小时前？

问题 the+比较级, the better 句型

主要有2个问题： 1. the better后省略的内容是什么？ 2. 怎么理解中间由破折号隔开的那个同位语？就感觉不太能理解它想表达的意思，以及它和前面的分句1的逻辑关系？

问题 插入语的含义

The gross between 100 and 150 rupees a day, out of which they have to pay 20 ruppes for the use of the rickshaw and an occasional 75 or more for a payoff if a policeman stops them for, say, crossing a street where rickshaws are prohibited.请问老师这个say在这个地方表达一层什么含义...

问题 请教曹老师关于剑桥英语语法动词的问题

剑桥英语语法第123-124页：Classification of subsituations and of overall situation这个地方不懂，尤其关于这个subsituation和overall situation。曹老师能否讲一下这一段。

问题 关于it is adj. for sb. to sth. 句型的疑问

...less attention to health?因为主语是it 而under too much pressure修饰的是students而非主语it 所以我在想这个句子到底对不对这个句子是我自己想的在阅读里看到过一个类似的句子：For the most popular activities，it is advisable to apply early for a place....

文章 高中英语新课标词汇-教学参考资料-concentrate on

...基本用法主要用于表示思想、精力、注意力等方面，其中的介词 on 也可换成 upone。如：I need to concentrate on the task at hand. 我需要专注于手头的工作。He wants to concentrate on his film career. 他想全力以赴投身电影事业。This firm concentrates ...

问题 the home of与the home to的区别

India is the home ______ elephants and tigers. A. to     B. of     C. with      D. about请问是填 of 还是填 to。归纳起来就是：the home of与the home to的区别是什么？

问题 almost did sth和could have done sth在表示“差点就”时的区别

请问almost did sth和could have done sth在表示“差点就”时的区别？

问题 句子中修饰不定式中动词的ever可不可以改变位置

各位老师好，我想问如下这个问题：He warned that the creation of artificial intelligence will be "either the best,or the worst thing, ever to happen to humanity".我认为ever是修饰不定式中的happen的，那么是否可以改写成 "to ever happen to humanity"呢？ 

问题 句子结构的理解和翻译(as much as)

...tomatoes,carrots and green tea on them.这是摘自一道阅读理解题中的一段原话，请问第一句this design is perhaps as much about the future of food production as architecture的句式语法结构怎样理解？怎样翻译它？谢谢老师！

问题 请解释seem to have done的用法

I feel a bit cold. I seemed ______ a cold. 答案是to have caught. 为什么？

问题 不定式省略to的用法问题

Much of the language makes it sound like a precise science.  其中 sound 前是否省略了不定式符号 to？为什么可以省略不定式符号 to？什么情况不定式作宾补可以省略不定式符号 to 呢？谢谢!!

问题 请教一个翻译的问题(as you go)

So why not wrap the ramp around the Pyramid, building the ramp around it as you go? 这里 as you go 怎么理解？