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问题 what到底是不是关系代词

...hat 在下面的句子是包括“先行词+关系代词”：What you say is right.我就是明确 what 这样用能不能叫它为“关系代词”，我感觉它只是“包括关系代词”啊！

问题 in which引导的定语从句

老师您好！中国正在开展公众可参加的项目。China is developing some programs in which the public can take part in.这样翻译对吗？这是 in which 引导的定从，可以用that吗? 最后 take part in 的 In 要不要去掉？

问题 There可否放到最后或去掉

There 50 per cent or more of the population is/are illiterate.1.开头为什么有一个There? 可否放到最后？可否去掉There? 去掉之后，意思有变化吗？2.上句可否改成There are 50 per cent or more of the population being illiterate，意思有变化吗？谢谢老师！

问题 过去分词作状语的具体用法

Earth Day, marked on 22 April, is an annual event aiming to raise public awareness about environmental protection.想问一下这句话中过去分词作状语的用法。marked on 22 April是独立成分（插入语）吗？几种主要的原因状语、让步状语、条件状语之类的好像都...

问题 there be的特殊疑问句（对时间状语提问）

On which night is there no moonlight?这句话对吗？

问题 worth doing做句尾疑问

The best prize that life offers is the chance to work hard at work worth doing.如何理解这里的at work worth doing的worth是什么成分？to后面整体不定式作chance的定语吗？

问题 关于连词后接分词的疑问

看到本站看到一个问题：https://www.cpsenglish.com/question/8101其中有When doing homework, he often listens to music.这个句子这里的when doing应该是等于when he does homework还是等于when he is doing homework?  希望老师解惑，谢谢！

问题 非限制性定语从句用that引导

This last fact, that that is obligatory, should be easy to remember.请问这里的为什么用 that 引导非限制性定语从句？另外，为什么这里有两个 that？

问题 句中的 he knows 是插入语吗

Is this something he knows will happen?请问曹教授he knows是插入语吗？这句话的主句是什么？整个句子成分怎么分析？

问题 based on 的成分——过去分词作状语吗

Matter is grouped based on looks and actions.请问老师：based on looks and actions 在这里是作状语修饰动词grouped吗？

问题 as shown here we needed是什么意思

...视频里讲到乘飞机安全提示时，有一句话是you can release it as shown here when needed。中文字母翻译是：当提示灯显示无需系安全带时，你可根据需要解开它。我看不明白英文的as shown here we needed.这部分的表达，以及shown和needed为何使...

问题 单词estimated的使用

...别扭，成了“估计的96%数字的肯尼亚家庭…”。不如写成It 's estimated that 96% of households in Kenya…，我觉得更通畅。请老师帮助讲讲原文里这种用分词形式estimated的表达方式。如果这种表达方式是规范符合英语表达习惯的，那请推...

问题 固定搭配：work hard at sth还是work hard on sth

I must keep on working hard ________ it. 请问应该填on, at还是都对？

问题 would have been该怎么理解

How long do you think it would have been before your lie was discovered?这句话理解不好这个would have been，我能分析出从句用了was discovered是表示谎言在说话时已经被揭穿了，但是这里的would have been就让我的思维彻底乱套了，这到底是表示在现在...

问题 others还是the others

您好，请看下面句子It was Monday morning, and the writing class had just begun. Everyone was silent, waiting to see who would be called upon to read his or her paragraph aloud. Some of us were confident and eager to take part in the class activity; others were nervous and anxious.是否应...