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问题 still doing sth和still be doing

the company has a mechanical clock that is designed to still be marking time thousands of years hence.请问这里为啥是still be doing呀 谢谢老师

问题 that是引导词还是代词的辨别

People are invited to query Marilyn vos Savant, who at age 10 had tested at a mental level of someone about 23 years old; that gave her an IQ of 228 - the highest score ever recorded.这里的that是引导词还是代词呢？如果是引导词那么先行词是什么？

问题 wherever and whenever是什么意思（2020北京卷）

The app makes our practical language lessons available wherever and whenever.这是2020高考英语北京卷阅读理解A中的一个句子，这里的 wherever and whenever 是什么意思？wherever and whenever 为什么单独使用？

问题 数词做同位语的问题(both与two)

请问老师，你们俩 You two 和 You both 是否都正确？He put them both into his mouth. We both tried to get the coins.这两句话中的both可不可以都用two替换？

问题 定语从句中用who不用that的问题

当先行词指人并含有较长的后置定语或在被分割的定语从句中，宜用who不用that引导定语从句。The boy was crying hard who lost his way while looking for his mother.这里是有后置定语，还是有被分割的定语从句呢？如果有，在哪里？

问题 pieces of后可以加可数名词吗

We've assumed that multi-level page tables only have two levels: a page directory and then pieces of the page table.A piece of 后面只能加不可数名词，为何pieces of 后可以加可数名词page table （页表）？请教各位老师！

问题 介词短语可否作宾语的补语

我看到一个句子，it felt so good to let the crisp cool air into my lungs。这句话中用介词短语into my lungs做前面名词air的补语，我觉得这个结构很少见，要我会说…cool air come into my lungs或blow into my lungs。请教老师，介词短语可否像这样做宾...

问题 being done与done做定语

The figure for boys being hurt by teasing was 27percent.请问各位老师，此句中being hurt可否用hurt来替换？这里应该是现在分词做boys的定语。根据实际情况，数据调查已经完成学生们被伤害应该也是过去的事情那么用过去分词不是很合适吗?这...

问题 句子成分分析

...好 有两个简单句但是我想知道其中的句子成分如何分析1.The teacher always starts class promptly.2.When he comes to look at you, you can jump up.疑问：1.请问句1里always和promptly都是副词，我能说这两个副词都是句子的状语吗？2.在when引导的从句中...

问题 不定式做定语的逻辑关系问题

I have a lot of work to do.这里为什么不用to be done？被修饰词和不定式是动宾关系？The meeting to be held tomorrow is very important.这里为什么又用to be done的形式而不是用to held？这里被修饰词和不定式是什么关系？

问题 虚拟语气的使用问题

...范文里面的一段话。请教各位老师，这里的had it not been...the society would have been..的使用是否合适？我的理解：If it hadn't been for句型是表示对过去的虚拟，但前文用的是一般现在时来描述现在普遍的情况，might be是对现在的推测，bi...

问题 when引导的时间状语从句的题目

Several weeks had gone by _____ I realized the painting was missing.A. as B. before C. since D. when这道题为什么选B不选D呢？当我意识到的时候，已经过了好几个礼拜了。但是答案是B before。before我也可以理解，但是我觉得D也是对的。

问题 As much as has been achieved 用法疑问

As much as has been achieved in connection with globalization, there are much more to be done.这里的as much as看似用作即是，但他是不是缺了主语？

问题 时间状语by now的谓语动词时态

...upposed to be here by now ?""Don't worry, she'll be here in about twenty minutes." (TOEFL)既然是时间状语by now，为什么前面使用了一般过去时Wasn't呢？我不能理解。是否应该改成Isn't呢？望老师答疑解惑，谢谢！

问题 what happened that eliminated 中的that的用法

We do not know exactly what happened that eliminated so many species in a relatively short period of time, but there are several possible explanations. 托福写作中句子，还请老师指点，谢谢！