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问题 before being done 为啥不是before done

The refugees were put in camps in Italy before being resettled. 这些难民在重新定居前被安置在意大利的难民营中。为什么before作为连词接分词做状语时，总是接的being done 而不是done了？before这里不是连接副词吗？

问题 名词后面跟着的When 是定语从句还是状语从句

请问各位老师，下面这两句话同样是跟在名词后面，怎么判断when 它引导的是定语从句还是时间状语从句呢？1. It was 1949 when the PRC was founded 2.It was three o’clock when we came back home.

问题 陈述语气还是虚拟语气（感觉 if 从句要用虚拟语气）

If she hasn’t had the baby already, she’s going to have it any time now. 这个句子的语法对吗？if 从句为什么不用虚拟语气？

问题 doubt 后面的连词用whether/ if或that，不知有何规律可循

a) I don't doubt that John will come on time. 我相信约翰一定会准时到。 b) I doubt if he is honest. 说他老实，我看靠不住。 doubt 后面的连词用whether/ if或that，不知有何规律可循?

问题 货币的表达方式

...，所以后文再出现时使用it 代指，而且谓语动词使用三单is ；红色的fifty pence pieces 是五十便士的硬币的意思，所以后文再出现时使用they，their 代指，而且谓语动词使用复数are。所以第一个问题是：（如图标记1所示）his fifty pence...

问题 涉及try doing与try to do的考题

You should try ( )the way i suggested,I'm sure you'd find it much easier.A.to doB.doingC.and doD.and doing

问题 to have separated ...在句中作定语还是状语

Hospital staff burst into cheers after doctors completed a 20-hour operation to have separated one-year-old twins at the head.疑问：to have....在句中作定语还是状语，是什么状语?

问题 then连接两个句子(前面要不要加and)

We usually get up at 6:30 a.m., then having a washing and getting dressed quickly, we go to the sports ground to take some exercise, such as running, doing morning exercises, etc.  请问 then 前面要不要加 and，谢谢!

问题 表示人体部位的名词前用冠词和物主代词有什么不同

I grabbed him by the arm. I grabbed his arm.表示人体部位的名词前用冠词和物主代词有什么不同？谢谢老师回答。

问题 warn off 后跟 doing sth 结构

请教老师warn off 这个词：He was warned off buying the house.查字典发现这个句子用 doing 形式，但是 warn off 字典归类为短语动词，那这个句子后面 doing 作什么成分？能否把这个短语动词分开来看，off+doing 看作介宾短语，这样其就能充当...

问题 go big and go quick第二个go多余吗

So again the incentives are to go big and go quick.请问老师，第二个go多余吗？

问题 引导地点状语从句的连词为何用wherever而不是where

此处引导地点状语从句的连词为何用wherever，而不是where？This was talked about wherever farmers gathered and spread fast through the village.如果可以，还请解释一下句子的含义。

问题 请问just和indeed可以连用么

...ed不能放在一起呢？题目如下：Successful new products are often the cornerstone on which great, new companies—and, just indeed, new industries—are built.其中，just是多余的，但是just和indeed都有副词的含义，还是词义上不允许两个词连用么。有劳大家分...

问题 请问此处What future boyfriends? 是省略句吗

Ross: ...So I think Alan will become the yardstick against which all future boyfriends will be measured.Rachel: What future boyfriends? 请问此处What future boyfriends? 是省略句吗谢谢老师解答

问题 by saying that 可以省略that吗？

They tried to buy time by saying that it would be ready next week.Thye could not believe that the official was so easily bought.请问这样的从句中，by saying that / believe that 可以省略吗，如果不省略，对句意产生什么特别的作用吗？？