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问题 如何区别on是做副词还是介词

When all the beams are fixed they will begin to nail the planks on to the ribs.这里的on是补足语还是副词修饰nail呢？

问题 不定冠词

...e; a答案是D 老师 我不明白为什么第二个空用a 是指毕加索的画 所以用a 是吗 这是不定冠词哪种用法呢

问题 句子成分分析

...句话中，about和over是程度副词吗？以第二句话为例，他们的修饰关系是：over修饰和30 years，然后over 30 years再修饰old，最后把over 30 years old整体看作是形容词短语作定语，这样分析可以吗？

问题 动名词或不定式

It appears that you have improperly spaced some punctuation.Consider adding a space. 请问老师第二句话里，是不是因为已经有动词consider了，所以后面的动词add就要变为动名词？  那么， adding 可以替换为to add吗？

问题 独立主格结构前面加连词and吗

The airport was full of the usual emotional scenes, and people saying goodbye.这里的独立主格people saying goodbye前面为什么要加个连词and？

问题 缩略式是is还是has

Tom's a bad influence on her.请问这里的缩略式是Tom's 是 Tom is 还是Tom has?有人认为是 Tom is，我觉得不对，应该是 Tom has。请专家老师帮忙判断一下，谢谢！

问题 此处为何不用can

...助动词can虽然也可用来表示可能性，但它不用于表示存在的there be结构中，表示存在某种可能性可用could，may，might

问题 outside of one是啥意思

In fact, many people feel lonelier and more disconnected in a relationship than outside of one.老师这里的outside of one该怎么理解和翻译呢？

问题 倒装句在何种情况下必须强制倒装

1.请问先生，Never does he speak English. 是否属于到倒装句？2.倒装句在何种情况下是必须强制倒装的？（而非强调作用） 

问题 see sb done

I saw her gone.I saw her gone to school.I found her gone.I found her gone to school.I found her walked to school.I saw her walked to school.请问这几句都对吗？过去分词表示完成的意思?

问题 It指什么

When I grow old one day, please be good to me and try to understand me. If I get dirty when eating or if I cannot dress, help me, remember the hours I spent teaching it to you.这里的it指什么呢，指动词eating和dress嘛？it可以指代动词嘛？

问题 Not only 倒装句

Not only does not he love the girl, but also he hates her.Not only does he not love the girl, but also he hates her.请问上面两句话那句对呢？  有没有权威的例句

问题 英语句子结构和意思

老师好！上面文字摘自绘本故事《Alexsander,who used to be rich last Sunday》，请教老师画框句子的结构和意思：Except the way I rescued it from being melted or smushed was that I ate it. How was I supposed to know it was Anthony's?谢谢老师!

问题 破折号后句子结构

The vision that you glorify in your mind, the ideal that you enthrone in your heart—this your will build your life by, this you will become.曹老师好，弟子请教曹老师此句句子结构怎么划分？尤其破折号后面的内容。谢谢老师。

问题 关于a+adj+不可数名词

比如：What nice weather！就不能加 a。而 Running is a good exercise. 就可以加a。请问在做题的时候如何判断，还是只能是背下来哪些不可数名词前面有形容词就能加 a？