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问题 怎么区分主语从句和状语从句？

...and fire off a know-it-all screed in the comments section of some website, but it's different when it's on your doorstep.这句话中when引导的从句是主语从句还是时间状从？同理由此引申出：如果it作主句主语，从句是由where、if引导，怎么区分主语从...

问题 former和was/is的使用搭配疑问？

Mike is a teacher now, but he is/was former worker.要说他以前是工人，如果有了“former以前的”，是否可以不用was，而用is呢？ 如果没有former,当然要用was.但是因为已经有了former表明是以前，还需要用was吗？是否可以用is呢？

问题 定语从句中，关系代词that和who如何辨析？

Granted, you're not the pronunciation expert that I am. But you have been speaking English longer than I have.上句中的that I am 定语从句不可以换用who作关系代词吧？为什么呢？

问题 add to意思

But a group is no organism physically added to its constituent individuals; it has no brain or stomach of its own; it must think or feel with the brains or nerves of its members. 但是，群体除了是由单个的人组成外，并不是真正具有生理作用的有机体，它没有自己...

问题 这句话的结构很难理解

But the winner-takes-all nature of technology markets means those that succeed often do so extravagantly.老师您好，这句话的主语是winner-takes-all nature谓语动词是means 宾语是一个those作先行词，that引导的定语从句，且到succeed戒指，那如果这样理解的话...

问题 take off 在这里的意思是什么

The instant gratification provided by the gig sector is allowing thousands of participants to convert time into money-but it can be tricky for those whose gig experience takes off to know their responsibilities in terms of financial management, insurance and tax.

问题 这句话中的 identified 是过去式还是过去分词

Church rolls suggest there were 1.1m Mormons in Brazil in 2010, but only about 227,000 Brazilians identified as Mormon in the census the same year.提前感谢老师们答疑！

问题 此处inventory和specialization如何理解，尤其是specialization

The above inventory of natural selection specializations would be remarkable enough, but what really separates the chameleon from its fellow reptiles is the fact that its scales contain the ability to change color.

问题 句子成分分析

we see these road less areas as areas with an inherent value;something that merits being seen as a conservation target in its own right.road less areas 这里的less 是名词吗?something 后面的that merits 是定从 ，being seen as a conservation target in its own right.是过去分词短语做...

问题 in similar to 的意思

We sell [the names of the product] to do the job in similar density-problem situations to the one you're talking about. 这句用的是 similar to  的固定搭配吗？

问题 free table是免费的位子还是空位子

I’m afraid we don’t have any free tables this evening.free table是免费的位子还是空位子?

问题 and是表示转折还是对照

Both Brazil and China do rely on each other for a lot. And as Europe slows as we’ve been talking about and U.S. does remain sluggish.句中两个and是表示转折，还是对照？如何理解这两个and在句中的用法？

问题 请教句子成分

...过去分词表被动，难道这个人是“被坐”在那里吗？ 2)We only have enough water purification tablets to last a day, maybe two.请老师帮忙从传统语法和现代语法分别 分析下这个句子的不定式是什么成分？它修饰的是谁？

问题 句子时态问题

Those were the last words he ever spoke to us.It'll just be the last thing we ever do.第一个句子的定语从句可不可以改为现在完成时，此时是不是表达到现在为止对我们说的最后一句话？如果用过去完成时，是不是表达到谓语were的时间为止对我们...

问题 become ready 与 get ready

We’re always in a mad rush to ______ ready in the morning.A. become   B. get如何选？感觉填 get 肯定可以，因为比较顺口。但填 become 就不行吗？