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问题 when从句的主句为什么用现在完成时态

When they get to school age they have not learned any self control. 对when引导的时间状语从句时态有点乱，请问这句是为了表达“还没有学会自我管理”的意思才用have done吗？

问题 what引导主语从句及作为限定词用法

老师，这个句子，是what引导的主语从句，这个我知道的；同时what作为限定词修饰了book；what的这两种做法可以结合在一起嘛,可以说what在从句中做定语嘛。What book you are going to buy is not important.

问题 or even less 作什么成分

请问or even less是作什么成分呢？China endeavors to increase its grain production so that its self-sufficiency rate of grain under normal conditions will be above 95 percent and the net import rate 5 percent, or even less, of the total consumption quantity.

问题 there独立主格和后置定语的问题

1.There being nothing to do，……该独立结构中，there和nothing哪个才是独立主格的主语？是不是nothing？there只是being的一个类似逻辑主语的虚拟主语？这样理解对吗？2.后置定语到底是否与定语从句有关呢？很多后置定语就像省略了which...

问题 which I think is 是什么用法

He made another wonderful discovery, ___A___ of great importance to science.A. which I think is        B. which I think it isC. which I think it        D. I think which is

问题 What he does is...后面接动词用什么形式

What he does is ______ computer games. (可多选)A. play    B. to play   C. plays    D. playing

问题 句子结构分析

...ved in the confluence of components in a work and how they are constructed to generate meaning for the audience'(Versenyi 2003: 386).  1，'dramaturgy' be defined as这里问什么用“be”是不是前面少了一个“can”？2，involved in the 这里involved也是谓语吗？这句话可...

问题 形容词短语能做状语

They hope to continue improving their lives through hard work and watch their two sons grow up healthy and happy.我见过类似的They arrived safe and sound.句末的形容词可以理解为结果状语？这种形容词做什么成分合适？原句若改为副词healthily and happily与形容词...

问题 关于定语从句中why和for which的互换

I finally understood the reason why my mum had encouraged me not to give up.这个句子里的why是引导定语从句吗？可以换成for which 吗？

问题 what从句可以是缺少谓语吗

What the most important（主语） is（系动词） how to catch these chances（表语）. 这个句子我在 Grammarly 网站上查询时显示是正确的。那么主语部分 what the most important 是什么结构。如果是主语从句那么就缺少了系动词而且如果最高级做表...

问题 family(家庭)可以用复数吗

...of families? Why? 答案内容包括：I think families are very important to everyone. Because they are our beloved people, such as our parents, brothers or sisters.....根据答案可知families这里指的是家人，但我记得family指家人不需要变复数吧，而families应该指家庭吧...

问题 have sb do 和have sb doing

 I'm sorry to have you ______( take) the blame for my mistake. 这句话 用take 可以吗？ 为什么参考答案只能是 taking啊?

问题 关于married用法的疑问

...ied的其他常用用法（只要和以上用法相关的，get/be married to sb就不要说了）急等，非常感谢各位专家和朋友们的指导！

问题 哪些动词后接反身代词时可以省略

...说明它可以省略： I don’t think I shall ever adapt (myself) to this hot climate. 我想我永远也适应不了这炎热的气候。 请问：具有类似用法的动词有哪些？即哪些动词后接反身代词时可以省略？谢谢！

问题 连接性副词与连词的区别

...chin-deep in debt. Nevertheless, he is always jolly.They reported the loss to the police, in the meanwhile, they give all the necessary evidence.第一个句子还好理解，第二个句子是通过一个状语把两个句子连接起来了么？第二句可以把两个逗号去掉么？或者应...