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问题 主谓一致

And that is why America's Second Wave infrastructure-including roads, harbors, highways, ports and so on-were built with foreign investment.请问这里为什么用were而不是was呢，主语应该是America's Second Wave infrastructure吧期待解答，感谢！

问题 句子结构

Massive open online courses (MOOCs) have veered away from lectures  on Plato[柏拉图] or black holes[黑洞] in favour of courses that make their students more  employable. 请问from lectures  on Plato[柏拉图] or black holes[黑洞] 在句中做什么成分

问题 trade hands怎么理解

Shares this spring have traded hands at multiples of that valuation.这句话中的hands应该怎么理解，在句子中做什么成分？

问题 介词of用法

Of all the changes that have taken place in English-language newpapers during in the past quarter-century,....为什么开头的介词短语用of？有什么实际意义吗？其他介词可以吗？

问题 句子分析

The bottom four slots are occupied by countries that are both in a dire state and offer passports that do not easily allow their citizens an escape. 这里the bottom four slots. 为什么是形容词在前面，不应该是数词在前面嘛？the four bottom slots.

问题 不定式作定语还是同位语

I have the confidence to win.请问专家：这里的不定式是定语还是同位语？曹老师方便的话，麻烦曹老师解答一下，谢谢!

问题 能否不从形式语言学的角度解释完成时

...句The largest change in recent generations has been to our diet, although other critical elements of health — water, exercise, sun exposure, and sleep — also undergoing major shifts. Even if their aim is usually to prevent bone degradation, the more widespread awareness of Vitamin D’s im...

问题 现在完成进行时可以用于时间状语从句吗

...I’ve been sitting here for ages. 我在这儿坐了很久了。The crews have been setting up their cameras. 工作人员一直在调试摄影机。从理论上说，它应该也可用于复合句中，用于定语从句可能想象得到，比如说“一个一直在做某事的人”，如 a per...

问题 动态动词的不定式表示事件的疑问

...改成加入时间状语改成将来的事件He seems to write a letter in two mintues' time.这样改动是否能把句子改为正确？问题三:感官动词see sb do是跟谓语动词是同一时间，表示看到全过程。那么I saw him dance.但是saw是短暂动词，而dance是持续动...

问题 关于 die doing sth 的用法(这是表示方式吗)

I'll die fighting. 我将战斗至死。I nearly died laughing when she said that. 她说那话时，我差点给笑死。die + 分词该如何理解呢？表示以……的方式死去吗？

问题 关于think和think of使用的问题

我刚刚在答疑网里看到一句话：I don’t think it advisable that Tom be assigned to... 当问“你怎么想” ---what do you think of it? 那么这句话里面为什么不是i don't think of it advisable...?

问题 as的用法

...用so或者very呢？2.I saw the debate. I think you came across as honest and open, ma’am.这个as又是什么用法，为什么不直接用so呢？难道单独一个as能表示so的含义吗？

问题 关于现在分词被动式表示一般情况还是进行情况的讨论

...as being protected by his bodyguard.综合以上两句，这个貌似Being done表示的是谓语动作发生的时候,现在分词动作几乎同时发生,而并不是时候谓语动作发生的时候,现在分词动作正在发生。这种是否可以看成相当于一般体意义,而不是进行...

问题 句中where从句是地点状语从句吗

Where once a board schedule may have consisted of between eight and ten meetings a year, in many companies the number of events requiring board input and decisions has dramatically risen.1. 本句的where从句是做地点状语从句吗?2. 如果是的话，后面的in many companies也是地点状...

问题 副词修饰连词

It is an enjoyable thing to do simply because it is dazzling. 请问这里的simply修饰的是because还是because it is dazzling？