问题 hour-long与one-hour的区别

During the hour-long lunchtime, I ate in the school dining hall.请问句子中的 hour-long 可以换成 one-hour 吗？

问题 be +adj+to do sth与be+adj+doing sth,be+adj+that的问题？

老师，能作系表结构的形容词或形容词短语后面都可以接that从句，不定式，V-ing分词吗;important、difficult、necessary…be+adj+to do sth,都是这样的搭配。busy就是be+adj+doing。形容词后面是加to do还是doing，是需要一个一个记忆吗？

问题 关于现在完成时的题(如何理解对现在的影响或结果)

I heard a song on the radio. I ____ high and low at the music store, but I can't find it.A. searched    B. have searched 请问B答案合适吗？若选用B现在完成时，那么have searched 与现在联系（关系）或影响，结果是什么呢？

问题 分析：It is nessary for us to learn from each other.

It is nessary for us to learn from each other.句子成分的分析，为什么书上说红色部分是句子的主语，那么句子的谓语是哪个，It is necessary 是什么成分？

问题 Asked to stay, I couldn't very well leave.

Asked to stay, I couldn't very well leave.有一本书讲上述句子的过去分词asked有2种理解:1)可能意味着having been asked 2)也可能意味着since/when I was asked我不是太理解。麻烦老师详细深入分析1)和2），并翻译对应的中文意思。

问题 句子成分

We have a long way to go to reach our final goal.  to go是做way的定语吗，to reach our  final goal是目的状语吗?

问题 常见的后面只能接to do的词组（不能接doing）有哪些

问题 buy sth to sb 跟 for sb 有什么区别吗

问题 hesitate to sth, hesitate doing sth,hesitate abo比较

问题 He is sure to be right怎么分析句子成分

问题 She fussed about, unable to hide her impatience.

请分析一下后半句的语法，谢谢！

问题 much作为副词和much+名词使用辨析

...，不同于much与名词的搭配。I  think you can find rich men and poor just as much in farming as in any other occupationAs much as anyone he was a man of  his time.It is as much your responsibility as mine.1) 如何理解这里的much是副词，而不是much+名词结构呢？2）...

问题 although/though引导的让步状语从句时从句和主句的主语需要一致吗

Though long and difficult sentences in novels are not as many as in essays, it's still arduous when dealing with them. 你好~想问although/though引导的让步状语从，从句和主句的主语需要一致吗?

问题 句子改错

Because you are aware of people judge you by your table manners. 老师好！这个句子应该把aware of的of改成that，那能不能把judge改成judging?

问题 句子结构

Television commercials can inform about not just general issues, but specific things people can do it help.老师，后面的it help是不是多余呀？看不懂。