问题 句子中help to怎么理解？

He was to busy helping himself to diamonds to notice any pain.请问，help to diamond 是什么意思？  to notice any pain表示结果吗？

问题 play that + 一个句子: 这是什么结构和用法

...iday carried a cigar-box around on a tripod, playing that it was a camera, and halted all passers andaimed the thing and said "Ready! now look pleasant, please," but not even this capital joke could surprise the dreary faces into anysoftening.有2点疑问：1）playing that it was a camer...

问题 go to a doctor 与 go to the doctor

你好，请问一下初中阶段要用英语表示去看医生是go to a doctor还是go to the doctor呢？这两个可以互换吗？有什么区别吗？

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 to do还是to have done

Hospital staff burst into cheers after doctors completed a 20-hour operation _______ one-year-old twins at the head.A. to separate B. to have separated  老师，您好。此题究竟选A还是选B，我一直困惑不解。有人说只可以选A，有人说必须是B。您的看法是什么呢...

问题 be going to与be going to be的区别

He says he's going________ a computer programmer in the future.a.to do b.become c.be  d.to be这个答案选择d，老师我想问下：to后面为什么还要加一个be动词。谢谢！这个be 动词在什么情况下要加！

问题 alert sb to sth=sb be alerted to sth吗

They have been alerted to the possibility of further price rises.他们己意识到价格可能继续上涨。牛津字典上写的用法是alert sb to sth 使认识到，使意识到。我想问他为什么要加been。是因为alert sb to sth=sb be alerted to sth吗？希望老师可以解释一...

问题 go to a place（去一个地方）中的to可省略吗

看到这样一个句子：He likes going the park every weekend.请问这个句子对吗？是不是在 going 后面少了个介词 to？这样的to可以省略吗？谢谢！

问题 现在完成时中的have been to疑问

有些琢磨不透have been to是怎么一个原理结构？是不是have done+be to=have been to？be to的意思是 将要做，然后加上完成时的形式后 have been to，表示已经做过？包含着一种 非延续性的含义在其中 对吗？然后如果have been to Beijing就表示去...

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 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 mean to 与 be meant to 的区别

The track ______（mean）to inspire people’s hearts “with the soft power of music”.这个句子用 menas 还 is meant？

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