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问题 分析一个句子中的四个of的用法

Proper, scientific study of the impacts of dams and of the costs and benefits ofcontrolling water can help to resolve these conflicts.请问：句中的四个of该如何分析？

问题 Be careful what you do.的句子成分

请问在 Be careful what you do 这个句子中，what you do 是什么成分？

问题 begin thinking与begin to think的用法问题

I began thinking about this matter.此句中的 thinking 应该改为 to think 吧？

问题 介词短语作介词的宾语(to near the viliage)

I went to near the viliage.to near the viliage 如何理解与分析。

问题 如何理解这复杂的主语

And if a book starts to drag, giving up on it to stream a movie over Netflix or scroll through your Twitter feed is only a few taps away. 本句话句子结构不理解，求老师给以划分和翻译，谢谢谢谢了!

问题 名词所有格作定语与名词修饰名词作定语的区别

老师，名词所有格作定语表所属，来源，类别和名词修饰名词做定语表示所属，来源，类别有什么区别？

问题 过去式与现在分词的选择方法

He entered it, ____ a cup of coffee, and sat down.A. asked about     B. asking for     C. asked for     D. asking about答案为 C，改题怎么改动，才能选择 B 呢？

问题 the size of后面的名词要不要冠词

It is about the size of _____.A. an egg    B. egg答案是 B。请问为什么不能用 A 呢？

问题 while,during,when表示时间的区别

_______the first decade of the 19thcentury, the velocipede, the forerunner of the modern bicycle, lost favor temporarily. A. While B. It was C. During D. When 

问题 句中现在分词和不定式的使用区别

如题，下面为一个例句quit wasting time talking to me then那就别跟我废话多么多了求教，这里 talking to me 是什么成分，为什么不是to talk to me

问题 是否要加逗号的疑问

Sylvia regularly took a crowded subway train to work during rush hour, so she found it to be a paradox one hot, steamy  Tuesday to easily find a seat in a car that was nearly empty.  请教各位老师，paradox后面需要不需要加逗号儿？我认为是最好不加。

问题 单独的普通名词做专有名词前面是否加定冠词the

目前知道山河湖海、群岛、平原、沙漠、太阳、月亮、地球、朝代，时代这些必须加，那有没有不加的呢？

问题 不定式与分词作后置定语的疑惑

各位老师，下面这个句子是用to force 还是forcing?为什么？The government plans to bring in new laws _____ (force) parents to take more responsibility for the education of their children. 

问题 not so much having 的用法

It was not so much having to tramp a mile along the dusty street of Croydon, followed by a crocodile of small boys... not so much having是什么意思，having是什么用法？

问题 determiner用法

在旋元佑的语法俱乐部中写到，同位determiner只能出现在一个名词词组中，就说明some john's friends这种用法是不被接受的，但是为什么会有一些 例如 a man'jacket这种用法，逻辑和some john's friends是一样的却被视为正确用法，...