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问题 关于There is difficulty to do/in doing sth的用法

Though there were great difficulties _______, he never gave up.A. in overcoming   B. to overcome答案是选不定式(B)，但为什么不能选 in doing sth (A)呢？英语不是有一个句式是 there is some difficulty (in) doing sth 吗？

问题 in that有哪些用法

只知道in that 可以引导原因状语从句，但好像它的用法不像是引导原因状语从句那样简单，敬请专家老师分析一下，特别感谢！英语答疑网的专家水平确实不一般，实在令人敬佩！！

问题 both you的说法是错的吗

Now we can watch both you on television at the same time.上面的句子有错吗？主是 both you 有错没有？

问题 难句中what的用法问题

“Advertising often serves as an indicator for what society considers to be socially acceptable and desirable at the time,” US marketing expert wrote on the Ad Council’s website.特别是what的用法弄不明白。

问题 which，although 还是 though

This green Great Wall, _____ at its peak during the Qing Dynasty covered thousands of hectares, had by the 1950s virtually disappeared.老师好，这一句话答案是填which，能否填although或者though吗？

问题 when做介词，连词，副词的用法

可以造一个当when是介词的句吗 The situation is when farmers have to sell their produce at low prices after harvest, when supplies are greatest. 这里的两个when分别是什么呢

问题 He was born in the city这里的born是动词还是形容词

He was born in the city.born是动词还是形容词？如果是动词的话，它加一个was不是表被动吗？born in the city是固定搭配吗？就是出生在城市的介词只能用in吗?

问题 What have you done since then? 和 What have you been doing since then?的区别

老师您好~What have you done since then? 有这种用法吗？若有，什么意思呢？What have you been doing since then?又是什么意思？另外，终止性延续动词，能和一段时间连用吗？此处do是否是终止性延续动词？谢谢。

问题 accurate in doing与accurate to do的用法问题

We hope to become more accurate in predicting earthquakes. 我们希望能更准确地预报地震。请问：句中的in predicting earthquakes 可以换成 to predict earthquakes 吗？

问题 fit in with短语被副词修饰时 副词位置可选么

Teamwork can help you to (   ) with others.A.fit in wellB.fit well in答案是A，well作为副词位置灵活 B 为啥不行呢？谢谢老师。

问题 in good conscience在句中的位置（可以放在句首吗）

I cannot in good conscience cast my vote against the defendant. in good conscience 的意思是“凭良心”，它为什么放在句中？可以放在句首吗？

问题 介词短语能修饰数词吗（120cm in length）

I'd like to purchase a large quantity of T8 LED glass tubes 120cm in length.老师,120cm in length.是如何理解的;数词修饰介词短语吗,还是介词短语修饰数词,那个修饰那个一般如何判断的,它们一起作T8 LED glass tubes的后置定语?

问题 One…in a hundred作主语时的主谓一致问题

One child in a hundred ______ to play with girls.A. like    B. likesOne…in a hundred作主语时，谓语动词用单数还是复数？

问题 Have a drive in my new car划分句子成分

请问：Have a drive in my new car. 中的 in my new car 是方式、手段状语吗？

文章 cut power from more than a hundred thousand homes 这个表达正确吗

...词（phrasal verbs），人们往往死记硬背，不去探究其结构和语义。2.“切断电源”不是cut power，而是 cut off power 或 cut power off。这里，off 是小品副词，是必具性的。大家知道，off 表示“电源与电器分离”，因此才有了 turn off...