问题 for + 一段时间 疑惑

We might even by a TV, we haven't had one for as long as we've been living together.for后面应该是一段时间，那么怎么理解这里的as long as we've been living together是一段时间呢？是否省略了 for + some time + as long as we've been living together 呢？

问题 reason为什么用零冠词

So if you're one of the oh-phs, there's reason to be hopeful about the future.请问这句话reason为什么用零冠词这句话处处是新人教版必修一74页文章最后一段第一句。

问题 within+时间段

When I was 15, my family moved to Washington. I tried skateboarding there, but the locals were far less welcoming. Within a couple of years, I'd given it up.  [摘自2021全国卷甲,C]请问上面语境中的句子within a couple of years, I'd given it up为什么使用过去完成时态表达。...

问题 关于不定冠词和定冠词的用法。

1.An owl can see in the dark.2.The whale is in danger of becoming extinct.语法书上说，第1句的猫头鹰和第2句的鲸鱼都表示某类动物，为什么1句用不定冠词，第2句用定冠词了？

问题 deal with与do with的区别

deal with 与 how to 连用，do with 跟 what to 连用。两个短语都是“动词+介词”，为什么一个用 how to，一个用 what to？谢谢！

问题 过去将来完成时与虚拟语气

.... I had not been called awayD. nobody called me away请问老师，这题if引导非真实条件句，为什么主句又用的过去将来完成时？还有请问怎么区分陈述语气的时态和虚拟语气呢？提前谢谢老师！ 

问题 “the+形容词”做名词用时有变体吗（比如“物主代词+形容词”）

We will nurse your sick, clothe your naked and feed your hungry.the+形容词可以当名词使用，那它有变体吗？上文中的your sick,your naked,和your hungry是the+形容词作名词用的变体吗？ 谢谢老师回答。

问题 the one that is used to be的语法分析

The city is different from the one that is used to be. that 在从句中充当什么成分，从句是不是缺主语又缺宾语？

问题 关于补语的理解

我们的老师说补语属于句子中的修饰成分，即和定语,状语一样。然后又说表语是中心词，但是表语是主补，这不就矛盾了嘛。那么补语在传统认为是属于中心词呢还是属于修饰成分？

问题 "高铁"和"动车"用英语怎么说？

"高铁"和"动车"用英语怎么说？

问题 这里为什么用got expose

问题 为什么不能填arranged用被动

问题 这里用must表肯定猜测为什么不可以

Look at the clouds .It __ rain. A.must B.is going to C.may D.will 这里用must表肯定猜测为什么不可以?

问题 provided for后面是不是省略了介词for的宾语children

Allowing them to get to know their own neighbourhood and community gives them a "sense of place".This depends on "active exploration", which is not provided for when children are passengers in cars.老师第二句里面的provided for后面是不是省略了介词for的宾语children？

问题 英语时态和语态考题

...__ till today and are being modified by the work of scientists of our times.A. are to challenge B. may be challenged C. have been challenged D. are challenging老师，till是不是现在完成时的时间标志啊? 这道题怎么翻译啊？为什么要选择现在完成时啊？请老师详...