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问题 是补足语还是状语？请详解

It is not necessarily a selfish notion,because achieving the dream is assumed to make America strong.不定式是作目的状语还是主语补足语？还要一个简单的句子 I saw him taking their children to college.to college是作taking的目的（地点）状语，还是作宾语补足语...

问题 现在进行时表示感情色彩的用法疑问

老师，现在进行时常用来描写一种状态，往往显得生动，具有感情色彩，在这种用法中还伴有正在进行的含义了吗？The sports meet is going well.I am missing you very much.

问题 while 的用法

—I'm going to the post office.—_______ you're there, can you get me some stamps?A. As    B. While   C. Because  D. If答案为B. 有的解释说是引导让步状语从句，不对吧？这里的while是当什么时候讲还是既然的意思？两者说法网上都...

问题 句子成分分析（and again是什么用法）

The postcard is marked 1916 and again September 2010 when it was stamped to arrive.这个句子中 and again 是什么用法？还有那个 when 引导什么从句？

问题 介词on与for的一个用法区别

The doctor is busy preparing an operation____this patient.A.for  B.on正确答案是B. 但我怎么感觉是用for？难道for就不对了吗？还是答案有误？

问题 定语从句和同位语从句的判断

Singapore has a land reclamation project that builds up additional land from the sea floor.这句话从that充当成分来说是定语从句，但是感觉意义上that的引导的句子是对project的解释说明。那么到底是什么从句呢?

问题 如果理解句子中的but that

He also agreed to tell the Stapletons that Homes and I had gone to London,but that we would return to...老师，如何理解but that? 是另一方面的意思吗，表转折吗？这是个副词短语吗？

问题 as well as和than

The outcome depends on conditions as well as on how events unfold.这里on并列的宾语不对等，是否为语法错误？ As well as 不能连接并列分句，是省略的结果。是否than也可以理解为：不能连接并列分句，是省略的结果？

问题 if only用法

Here is way: Everything for sale has something wrong with it, if only the fact that you have to pay for it.里面if only该怎么理解？if only在一起是连词吗？ If only I had known you were coming I would have met your plane. If only it would snow on Christmas Eve.

问题 地点的维度，经度，高程表述问题

...51m的试验路“，下面的表述正确吗?Silty clay was obtained from the experimental road (Figure 1), at which locates latitude 44.896407° N, and longitude 126.559129° E, and elevation 207.51m.

问题 should have put中的have可以去掉吗

You should have put the book where you found it. 请问这句话中，have可以去掉吗？它做什么成分呢？

问题 be extremely well presented是什么意思

Eric nearly always wins the science award.That's beacuse his project are extremely well presented.句中presented是什么意思? 句中应该如何翻译呢？

问题 被动语态为什么要用加上 being

The movie is also being directed by Peter Chan.  这部电影也由陈可辛导演。这句话是被动语态,为什么要用加上现在分词being？

问题 系表结构还是被动语态（being resolved）

The EU debt crisis is far from being resolved and could blow up at any time. 这里的 being resolved 是形容词的系表结构还是被动语态的？

问题 介词to的用法

#语法求助#centralization also refers to the extent to which people have to refer decisions upwards to their superiors. 这个句子我能理解，我就是理解不了这里to which是干什么用的？如果这个to which一直到后面是介宾短语做后置定语，那which在短语中逻辑...