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问题 为什么把which改成what（改错题）

一道改错题，为什么把which改成what？On average, young people from poor families had test scores between three and four points below which is expected for their age group. 为什么把which改成what？谢谢老师！

问题 what I was.. 这个what 什么意思？

I'm much more confident behind the wheel than what I was when I started.之前初中题I don't know what He is.是说我不知道他的职业吗？在上面的这个句子 可以用who I was吗？

问题 to the effect that的成分分析

He said something to the effect that he would have to change jobs if the situation continued.这个句子中的to the effect that是介词短语引导的从句吗？还是省略句，something which is to the effect that… 

问题 如何区分现在分词作状语还是作定语

Physicians-frustrated by their inability to cure the disease and fearing loss of hope in the patient-too often offer aggressive treatment far beyond what is scientifically justified.中间插入语部分是过去分词作状语，为什么不是作定语呢，作定语和作状语该怎么区分呢?...

问题 on one,on the other

Communication takes place on "two planes": on one the linguistic message is encoded; on the other are factors which influence the linguistic message. 老师好！这句话中的on the other hand是用了倒装吗?是必须用倒装吗？第一句on one为什么不用? 

问题 first-ever的类似构词例子

...子(出自高中英语新教材北师大版必修一第17页)：Zhang Tian is planning to organise the first-ever school concert!参见：https://www.cpsenglish.com/question/53910请老师说说 first-ever 的构词知识，有类似的构词例子吗？

问题 on your own 的用法对吗

我在网上看到有的网友认为此句中的your 应改为my. 不知本网专家和网友如何看？谢谢！ The city is safe enough during the daytime, but I wouldn't walk the streets on your own at night. https://idioms.thefreedictionary.com/walk+the+streets

问题 关于使用名词 environment 还是 形容词environmental

...于使用名词 environment 还是形容词environmental ？1）Recycling is one of the best (environment / environmental) success stories of the late 20th century.2）We should support those (environment / environmental) protectors.上面2句应该分别使用名词，还是形容词呢？谢谢。

问题 两道涉及情态动词的选择题

1. It’s nearly seven o’clock. Jack ______ be here at any moment. A. can      B. will     C. should     D. may 答案为 C，学生不解。 2. Professor Wang, many students want to see you. _____ they wait here or ...

问题 since being split from 是介词+动名词宾语的结构吗

News corporation made its biggest acquisition since being split from the film and television parts of Rupert Murdoch's empire, by agreeing to buy Move, an online property listings firm, for $950m.请问老师，句中的since being split from 是介词+动名词宾语的结构吗？谢谢！

问题 是不是有些动词只能使用过去时

... embarrass, catch, buy, fail等等。The house catches fire.(误)You buy it.(误)The pants embarrass me.(误)I fail to persuade my father to give up the smoking.(误)学生认为有些词好像天生就有用过去式的含义，如果使用现在式就是错的。请问老师所有的英文动词...

问题 为什么介词可以直接接动词原型

Under these conditions, it made good sense to thousands of peasant families to in effect work full-time at what they had been able to do only part-time previously because of the requirement to work for the government: grow rice for the marketplace.请教一下各位老师，这句话里的what既然...

问题 all 作主语时谓语用单数还是用复数

all 作主语时，如何确定谓语动词用单数还是用复数？是看它代表可数名词或不可数名词吗？如：All is equal before the law. 还是All are equal before the law.？

问题 请问：believed had been hastened是什么意思

Adonis is an elegy for John Keats whose early death from tuberculosis Shelley believed had been hastened by hostile reviews.请问：believed had been hastened是什么意思？

问题 定语从句关系代词that后面接which是否有重复呢

Behold the power of that which is yet unborn!看那还没有出生的力量！定语从句：这里的 that、which 是否有重复呢？分别作什么成分呢？