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问题 为什么省略了定语从句中的who are

The procedure is so  commonplace  that 1.5%of the babies born in Western Europe,North America and Australia owe their existence to the  technology .(2018-7(洛杉矶时报》)这个句子中babies 后面跟的who are born为什么省略了?

问题 不定式和现在分词的区别(for sb doing与for sb to do)

So the U.S. Surgeon General has suggested that e-cigarettes may be a useful toolfor adults trying (try) to end their tobacco use,or quit.为什么空格部分不能用不定式to try?（空格部分为 trying）

问题 介词短语所做的成分

...6, the 10th straight year its expenses have exceeded revenue.Meanwhile, it has more than $120billion in unfunded liabilities, mostly for employee health and retirement costs. (这理的it代指的是USPS是美国邮政管理局)1 请问这里的the 10th straight year its expenses have exceeded reven...

问题 这里为什么用动词原形 be

...原句为何用 be 的原型而不是 be 的复数形式 are（ 即 others who are ready to help…）原句为：There are many others who take Leifeng as a model and be always ready to help others without expecting any reward.我改的句子：There are many others who take Leifeng as a model...

问题 for加一段时间是不是可用于任何时态

....现在完成时Andy and Tom talked for three hours.一般过去时We have been waiting here for some time.现在完成进行时2怎么区分辨别和使用，现在完成时和现在完成进行时呢？现在完成时,有表示从过去开始，一直持续到现在的动作，可能还会持续...

问题 added to是什么用法

With research going on all the time, there would be greater wonders added to those it has already brought us.added to是什么用法？可以adding to吗？不理解。另外可以用will be 代替would be吗？ 有区别吗？麻烦老师详解，谢谢！

问题 从句的问题

He doesn’t have a clue who’s responsible.这个句子是不是不正规，who’s responsible前是不是省略了介词to或者about等介词？因为clue不等于who's responsible，所以这应该不是同位语从句吧？

文章 高中英语新课标词汇-教学参考资料-challenge

.... 新政府面临的第一个难题是经济问题。(3) 质疑，怀疑：Recent discoveries present a serious challenge to the authority of the government. 最近有人对宇宙年龄公认的看法提出了严重的质疑。His speech was a challenge to the president's programs. 他的讲话对...

问题 请教曹老师动态动词不能随意用于一般现在时的问题

...owing a book from the library.5.He will borrow books from the library.6.He has borrowed a book / books from the library.7.He wants to borrow a book / books from the library.我觉得前两句话应该是错误的，而后面的几句都是对的。只是无法具体地，有理有据地分析其原...

问题 句子分析

...Henry Ground had asked his brother, Colin, to read out his will. Henry had been in debt all his life, hadn't he? What could he possibly have to leave in a will?1、by invitation only介词短语作方式状语，前面为什么有逗号？2、 如何It was attended的意思，这是一个被动语...

问题 新概念英语第二册第69课 两个问题

...sted for a driving licence for the third time. I had been asked to drive in heavy traffic and had done so successfully. After having been instructed to drive out of town, I began to acquire confidence. Sure that I had ...

问题 反身代词的回指对象不在当前句也可以吗

She was extremely pretty, and her house was a reflection of herself, everything in good taste and in perfect order.这是2021浙江卷2中的一个句子。我对其中的反身代词用法感到有点奇怪。这个 herself 不是本句的 her house 一致，而是与并列句的前面一句中的 ...

问题 Who's that?用That's，It's还是She's/He's回答

A（敲门）B：Who is that？A:It's Eva.(或I'am Eva)2、打电话的时候A（打电话）B：（接电话）Who is that?A:This is Eva3、日常交谈,问“他/她/那是谁?”A：Who is that?B :He/She is Eva.(或That is my sister)也有这么说的：绝对不能用this 和that来回...

文章 关于情态动词推测用法的tag question的看法

...动词推测用法的tag question的看法试题：[1] Mr Green must have been punished for his being rude at the meeting, _____ he?A. mustn’t       B. wasn’t      C. didn’t      [2] Oh, Bill, I can't have lost my keys, _____ I ?A. can            B. have         C. ...

问题 BBC（英国广播公司）作主语谓语动词用单数还是复数

The BBC ________ (has, have) finally decided to bring the curtain down on one of its oldest television programmes. BBC 是一个公司，即“英国广播公司”，它作主语谓语动词用单数还是复数？谢谢！