问题 to do 还是 for doing 形式的困惑

...！1）旧东西被送到厂里并循环利用。The old things was sent to the factory to recycle/to be recycled/for recylcing ?2）垃圾接着被运去作回收处理。The rubbish is then carted away to recycle/to be recycled/for recycling ?请教老师：to recycle 不定式表目的可以吗...

问题 语序问题

老外发来一句I can investigate in our lab the level of cross-reactivity，总感觉好别扭，是不是应该; I can investigate the level of cross-reactivity in our lab。哪个对

问题 定从的省略

So we can arrive the aim of relative eradication of people's minds have entrenched utilitarianism . minds 后面省略that 的依据是什么？

问题 make用法疑问

________ plastics, the machine is light in weight.横线处为什么可以填Made of 而不是Having made of 呢？

问题 its 的指代问题

The beauty of the world lies in the diversity of its people.请问这里的 its 是指代什么？

问题 分析: I'm sorry to leave, mom, I had to go.

I'm sorry to leave, mom, I had to go（很抱歉我要走了,妈妈,我不得不去）请问这里的to leave是指过去离开吗？请问要怎样理解？

问题 附加状语(涉及​宾语相关的状语) 关于宾语附加状语的问题请教

I respect him as a doctor. 我尊重他这个医生。这里经过曹老师的指点，也查阅了一些资料确实是状语无疑，根据夸克的语法大全，这里应接近“宾语相关的状语”，大的类目上属于附加状语。但是仔细对照书中的例子感觉又不完全相...

问题 非谓语动词的句法结构(lost in thought与being lost in thought)

When i came in, I saw her sitting in the sofa____ in thought.A. to lose          B.losing             C.lost          D.being lost 这里为什么选C，不能选D？

问题 分析不定式是什么成分（涉及sth is easy to do, happen to do等）

1. The question is easy to answer.(to answer 做什么成分）2. I happened to meet him in the street.3. He seems to know the truth.

问题 分析 I have no objection to him coming to stay.

to him coming to stay 是objection的定语吗? 能具体分析一下这句话的结构吗？

问题 省略to的不定式

I've gotten to the point where I can be around some difficult people without feeling the need to be so reactive fix them to make them happier or want to avoid them.请问此处的so reactive fix them是否应为so reactive to fix them？为何能够省略to？或者是与so相关其他结构？

话题 1 is to 2 what 3 is to 4

话题 关于to do与to have done的疑问

问题 to是介词还是不定式

He attributes his success to hard work.这个句子当中的to hard work中的to是介词还是不定式？to hard work是作什么成分？如何区分to是介词还是不定式？

问题 step to do是定语还是状语

三个待讨论的句子[1] The president took immediate steps to stop the fighting. 来源: 朗文6[2] But there are more steps to be taken. 来源: 林超伦笔译实战[3] We just need to take that first step to changing. 来源: 外媒例句思路:对于[1]，由于take是动态动词，所以...