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问题 现在完成时中短暂性动词与一段时间连用的含义

...ame here two days ago.. 正：He has been here for two days. 正：It's two days since he came here. 说明：come是终止性动词，不能和表示持续一段时间的状语for two days连用。但He has come here for two days.是成立的，不过意思变为：“他已经...

问题 宾语从句

我记得老师说过介词后面不能跟that的宾语从句，那这里为什么of后面跟了？

问题 句子理解问题

请问老师画横线句子，of what…这一部分怎么理解？

问题 下句中的as引导的是什么状语从句

下句中的as引导的是什么状语从句？谢谢!Xinjiang also took advantage in free-throws as they outscored their opponent 22-9.

问题 并列句中的逗号

News that Cambridge Analytica (CA), a firm linked to President Donald Trump’s 2016 campaign, got data on 50m Face-book users in dubious, possibly illegal, ways has lit a firestorm. 请问这句话中的possibly illegal前面为什么没有and，以及和后面的way要有逗号？

问题 so的用法（perhaps catastrophically so）

老师们好，句子最后perhaps catastrophically so中，so指什么呢？But there is a risk that such changes will make some plant infections more common in all climatic zones, perhaps catastrophically so.

问题 going on在句中充当什么语法成分

There is generally very little unnecessary work going on in a good company.曹老师您好，句子中going on是作动名词修饰work充当名词短语，还是现在分词作状语？

问题 两个并列的过去动作一定有先后关系吗

两个并列的过去动作一定有先后关系吗？比如：He got up and left in a hurry.He fell down and lay there still.这都是有先后关系的吧。有没有那种不分先后的并列动作啊！

问题 独立主格结构中的being可以省略吗

She being absent, the meeting had to be put off. 句中的She being absent是独立主格吧，其中的 being 似乎是多余的，请问能省略吗？

问题 advance on与advance to的区别

He advanced on the city. 他向该城进发。这里为什么不用介词 to 而用介词 on 呢？没看明白，求解答！谢谢！

问题 as是作为介词引导同位语吗？

large carnivores, (such) as the bear or lion 大的食肉动物, 例如熊或狮子问题：(such) as 引导的是carnivores的同位语，as为介词，对吗？

问题 请帮忙分析下get to 的用法

（1）And then we only got to play for about five minutes.（2）And this lucky girl gets to run the curtains.

问题 形容词后面的名词可以省略吗

It was just such a stick as the old-fashioned family practitioner used to carry--dignified, solid, and reassuring.老师，dignified, solid, and reassuring 后面是否省略了名词？

问题 with复合结构用法疑问

Domestic delivery companies such as STO have had a rollercoaster ride on the public markets, with several sinking following their debuts. 请问这里的sinking是名词呢还是分词？翻译写的是有几家企业在上市后股份下跌，那说明several是个代词sinking是分词，那后...

问题 permanent 和 disappear 的矛盾问题

Finally you climb into an arctic-like zone with permanent snow and the glaciers that may soon disappear.老师，这里的 permanent 和 disappear 不是矛盾吗？ 还是雪和冰川是分开描写的?