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问题 This is the first time that从句时态

我们都知道This is the first time that从句时态常用现在完成时，请问还可以用别的时态吗，比如一般现在时？

问题 in the first place和at first 的区别

请问 in the first place  的英文解释是？它和at first 的区别是？

问题 介词短语可以作介词的宾语

from below the river（从河的下游） from under the desk（从桌子底下） from behind the curtain（从幕后）   from among the crowd（从人群中） till after examination（到考试后） from behind the tree（从树后面） till after sunset（...

问题 过去分词修饰名词判断

The start of the pandemic / was characterised by empty supermarket shelves, as global supply chains creaked under 请问这个caused by covid-19是修饰紧挨着的disruption还是修饰并列名词buying and the disruption，还是修饰strain的，原则上是不是三种都可以？应该怎...

问题 请教bones of the earth是一个固定成语吗？

请教这句话里的bones of the earth是一个固定短语表达方式吗？它表达什么含义？在这里单词bone是什么意思？

问题 out of the reach of sb还是o

表示某人伸手拿不到的地方，通常的说法是out of the reach of sb吧，因为有reach后面有of sb，前面应有定冠词the，对不对？但怎么有时也可见到out of reach of sb呢？怎么会没有定冠词the呢？是印刷错误吗？请专家老师指正！

问题 him on the sofa 和 me in a chair 是独立主格用法么

We sat in the living room, him on the sofa and me in a chair opposite.请问 him on the sofa 和 me in a chair 是独立主格用法么？

问题 请问先行词为主句表语关系代词就一定要用that吗？

...that。 但是下面这个改错题: Teaching is a job which one will never be perfect. 这个句子明显应该在which前面加上at，而不是把which改成that，那这样子跟书上的说法是不是矛盾了呢？

问题 be done doing sth的用法

I am done trying, 请问done的使用？为什么不是 I have done trying?

问题 In the office (there) was a tall man（有无there的区别）

A) In the office there was a tall man.B) In the office was a tall man.以上2句究竟有哪些区别？

问题 all around the globe 中 all around 的词性

老师您好，请帮忙分析下 travel all around the globe 中 all around 的词性。感谢！

问题 分析：That the earth is round is true.

That the earth is round is true.老师，这句话的主句在哪？

问题 英语可以用逗号连接分句吗

The resilient modulus value of granular materials is dependent from several parameters, among which the most important are the stress level, confining pressure and moisture content, the Mr value decreases along with the increase in water content为啥among前没有加连词，后面的the Mr前也...

问题 neither...nor...是连词吗

a)The room was quiet，the students neither talked nor laughed.b)The room was quiet，the students neither talking nor laughing.以上2句的后一句表原因。想知道：1) 以上2句中的neither...nor...是连词吗？2）b)句正确；a)句错误，改成The room was quiet. The students neith...

问题 after being consumed是介词短语还是从句省略后的形式

In fact, research suggests that potatoes are preferable to pasta in terms of their ability to reduce appetite after being consumed.上文中的绿色部分是介词加动名词结构，还是一个after引导的时间状语从句省略后的形式？谢谢老师的回答。