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问题 如何知道一些动词加ed就是形容词呢

如何知道一些动词加 ed 就是形容词呢？如：make them frustrated, an interesting book 等。是不是所有的动词都是加 -ed 就是形容词？

问题 if 虚拟条件句中时态用法

•We can offer you refunds if the goods you returned are not dirty and unusable.•You can get refunds if the goods you returned remain clean and usable.请问这两句话中 if 后的时态是否正确？ 

问题 same后的略用法

...the 20th anniversary celebration.以上句子修改自一本英文书籍中的句子。这个句子里the same men后是否省略了“as the company created”？单单一个same让人感觉比较突兀。谢谢解答！

问题 nowhere else 和 nowhere区别

第一题：___ have I seen a better performance.A. Nowhere else    B. Nowhere 用哪个合适呢？第二个句子：Nowhere else in the world can a tourist find cheaper tailoring than in Hongkong. 用Nowhere可以嘛？他们俩之间的区别到底是什么呢？

问题 为什么这里用is

Pastry is a food made from flour, fat, and water that is mixed together, rolledflat, and baked in the oven.is mixed 为啥？that的先行项是什么？

问题 worth 可以搭配to do吗？

The book is well worth to read这样写是错的吗？ 但网上有很多用to的句子 Such CPU has not been invited yet, but it is worth to do so. Is it worth it to do so?

问题 “已完成”还是“未完成”？该怎么理解呢？

1.She hasn't read the book.2.He has been dead.3.He hasn't been dead for 2 years.老师好，1-2句不跟时间段，但是，意思上好像是延续性的啊，那“已完成”怎么理解？第3句对吗？怎么理解呢？

问题 Only位于句首，为什么不倒装呢？

"Plenty. Plenty. Only he wasn't guilty of it."足够了，足够了，只是那件事并不是他的罪过呀。这里Only处于句首，为什么没有倒装呢？

问题 句中的that it 是什么用法？

 It got so bad that he had other employees calling him telling him that their colleagues were slacking o! so much that it they couldn’t do their own jobs.这个地方的that it 是个什么用法？

问题 unlucky是名词吗

But after forty days without a fish the boy's parents had told him that the old man was now definitely and finally salao，which is the worst form of unlucky, and the boy had gone at their orders in another boat which caught three good fish the first week.of unlucky这里的unlucky是名词吗？

问题 分析不定式 to recognize a masterpiece

He knows enough about art to recognize a masterpiece when he sees it.这里的不定式to recognize a masterpiece怎么分析？

问题 everybody 作主语时谓语动词为什么不用单数

英语字母歌的最后一句是：Now you know your ABC, everybody sing with me.请问为什么 everybody 作主语，谓语动词不用单数 sings ？

问题 间接引语问题

...o sth,never和not都是否定副词,它们在任何情况下都可以互换的是吗？

问题 make the team是什么意思

I’ll find a way to improve on my own so that I can make the team next year.本句摘自2019版人教版高中英语新教材必修一的Unit 1（p14）。请问这里的 make the team 是什么意思？

问题 介词from后面加as…as结构

Journalists came from as far afield as China.新闻记者有的来自遥远的中国。far / farther / further afield 是副词短语，搭配起来很奇怪这个牛津字典句子，不懂为什么后面from可以加as比较级，请老师指点。