问题 father, dad, daddy; mother, mum, mummy作称呼时的区别

请问各位专家：father, dad, daddy; mother, mum, mummy 用于称呼父母时有什么区别吗？

问题 介词后动词的逻辑主语是不是也要是句子主语

各位老师好，问题如题。比方说下面这个句子：Toxic substance will be left behind by using these facilities.这个句子是不是不对？改成：Toxic substance will be left behind by people/people's using these facilities.是不是就对了？谢谢老师。

问题 过去式dared后面接动词加不加to的问题

I wonder how he dared say that to the teacher.dare跟need应该一样吧,陈述句里是实义动词，而且这里是dared有时态变化！那为什么它可以直接跟say而不需要用to隔开？

问题 动词quote用法的疑问

Here’s to the crazy ones, the misfits, the rebels, the troublemakers, the round pegs in the square holes, the ones who see things differently. They’re not fond of rules, and they have no respect for the status quo. You can quote them, disagree with them, glorify or vilify them, but the only thin...

问题 一般过去时 vs 现在完成时 存疑

It's a good job. Did you do it all by yourself?  干的不错。都是你自己做的吗？请问老师这句为什么不能改为Have you done it all by yourself? 现在完成时：过去完成的动作与现在有着某种联系。夸他“干的不错”不就是他过去的动...

问题 关于现在完成时与过去时的理解

They _______(arrive) in new york,they are in the hotel now.They _______(go) away, they are back at home now.Everyone _______(go) home, the office is empty now.请问这三个句子改用完成时还是过去时，还是都可以呢?

问题 kindly do 和 be kind to do 的区别?

Would you ___ please?我搞不清楚, (B) kindly unlock this suitcase  和 (D) be kind to unlock this suitcase有什么区别?? 为什么选 D 不正确呢?

问题 质疑徐广联《当代高级英语语法》里的个别比喻句

1.You may as well expect a river to flow backward as hope ro change my mind.(may是否为might之误) 2.You might as well reason with him as reason wowh a wolf!(reason with him是否该和reason with wolf调换位置)

问题 claimed to 后面加现在完成时？怎么理解这个句子的时态

He claimed to have made a discovery that was more important than the invention of gun powder, the printing press, and the steam engine put together!

话题 so far/up to now/thus far/as yet之间的区别

话题 gift of understanding和gift of a quiet day的理解与翻译

话题 dare和do在句子how dare do you say that!的用法

话题 不定式在句子who are you to take us down的用法

话题 as 的用法（涉及as adj as it is to do sth）

问题 can never be overdressed or overeducated 的理解

...么也不...，但是搜索时看到几篇篇外文中引用这句话表达的意思是“你不能过度装饰或者过度教育”，这难道是根据上下文来理解的吗？外文摘要如下：1. Many people stand by the classic advice that you never want to look like you tired too hard.&nbs...