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问题 with fork 与 with a fork

Mash the potatoes with fork.请问这个句子对吗？是不是应该少了个不定冠词？Mash the potatoes with a fork. 

问题 非限制性定语从句的介词加关系代词的用法

1.The fire lasted for 5 hours, during which time everything was destroyed.老师这句话您说的是对的而且time不能换做hours，那为什么I will neverforget the day on which time I first met you就是错的？还有这句话He will put off hte picinic until May 1st, on...

问题 class和lesson的区别

... classes 是否可以相互换过来？Our English teacher was preparing the lessons when I came into the office.Our English teacher was preparing for classes every day.麻烦专家老师分析一下，谢谢！

问题 prejudice sb against..是固定搭配吗？

They are prejudiced against me.是被动语态吗？The prosecution lawyers have been trying to prejudice the jury against her.老师，prejudice sb against..是固定搭配吗？

问题 不定式和现在分词的用法区别

To expand the business, Harold Chapman Jr. relocated the Doll Hospital and included repairs to other toys, leather goods, umbrellas, etc.老师，这边的用To expand 和 expanding 的区别在哪里？

问题 这道题为什么要选主动语态

On the way to work，it _ to him that he had forgotten to turn off the gas in a hurry.A.occurredB.was occurredC.had occurredD.had been occurred

问题 表语从句what能用that替代吗

请问表语从句what能用that替代吗? 例如:The beautiful is what most people want to gain. 可以用that替代吗?The beautiful is that most people want to gain. 

问题 定语从句转换为宾语子句

(1) Every year the superstar set aside some time he can travel incognito with his  wife.定语从句转变为宾语子句：(2) Every year the superstar set aside when he can travel incognito with his wife.语法书说 句子(2)是错误的，为什么，请详细解释一下，（句子出处...

问题 worth doing做句尾疑问

The best prize that life offers is the chance to work hard at work worth doing.如何理解这里的at work worth doing的worth是什么成分？to后面整体不定式作chance的定语吗？

问题 by which 是什么语法结构

向给位老师请教一下：The distance by which these accidentals change the pitch is called a semitone.这句话应该如何理解呢？我知道 accidental是升降记号的意思，semiton是半音的意思，但 by which 是什么语法结构呢？请各位老师指点一下！

问题 关于最高级前面定冠词的省略问题

He is the youngest.He is the youngest child.请问，上面两句中的形容词最高级前面的定冠词可以省略吗？

问题 在过去式中表虚拟might do 和might have done用法区别

1) Lily walked in the forest with great caution for fear that she might be attacked by a giant snake. 2）Lily walked very carefully in the forest in case a giant snake might attack her.请问句1）和2）中，主句是过去时态，might be attacked 表示虚拟语气和might have been atta...

问题 这是双重定语从句还是强调句

句子：What was it you strated to tell me in the restaurant that you didn‘t understand about me？首先就我个人而言，it was what that….是强调句型我知道，信息焦点是what，作后面那个定语从句的宾语。特殊疑问句型就是What was it that……。那我就想...

问题 前面的it可以指代后面的内容吗

The program modeled it，after the American show “National Spelling Bee”.请问后面的句子是修饰前面的 it 吗？这个 it 是指代什么？它可指代后面的内容吗

问题 when 不能接延续性动词吗

He didn't stop talking until the teacher came in.=He ______ talking _______ the teacher came in.请问为什么不能用 kept  和 when 呢