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问题 关系副词的省略

Interaction with the multitude of microscopic organisms a baby picks up when it is born helps that system to learn friend from foe.老师您好，请问这里的a baby应该是省略了关系副词where吧，它为何又可以省略。它并非表地点，原因，时间啥的。

问题 关于感叹句的问题

想问下列表达方式都是可以的嘛How kind of him it is to help us.How kind of him to help us.How kind he is to help us.

问题 动词come to的用法

If it comes to a showdown, do you think you will be confident enough to defeat them？此处的come to是什么意思，什么用法？谢谢老师!

问题 to be的用法

It can be tiresome to be many things at the same time.请问老师这里的to be 是不是可以理解为to do，但为什么这里不只用to do，这是什么语法现象？

问题 融合性关系副词引导的从句

如果动词是不及物动词，融合型关系副词都可以换成介词+融合型关系副词吗？比如： You should put it (in) where they are.

问题 since时间从句

在含有since的时间状语从句中的主要分句能用一般过去时和用完成时有什么含义的不同？The annual assembly was held outside the Chinese mainland for the first time since its establishment in 2018.与主句改成现在完成时有什么具体语义上的不同？

问题 请教这句话里是否使用虚拟语气

根据语意，我想这句话里是否应使用虚拟语气，句子应写成…had got it wrong。请帮助解答。

问题 主谓一致问题

Problems are what make travel fun and interesting.这里的谓语动词make为何没用单数形式？盼专家老师指导。

问题 如何翻译“科研经费”

要表示汉语的“科研经费”，英语可以直接说成 science and technology expenditure 吗？

问题 分析句子

Stamps come in all different colors，shapes and sizes . 这个句子come in 如何翻译还有all是做形容词么，all译为全部么？

问题 副词插在不定式中间的用法(tell him to please be quiet)

...s afternoon, we had our chemistry class in the science lab. The lab is new and the lesson was great, but the guy next to me tried to talk to me the whole time. I couldn’t concentrate on the experiment. I really wanted to tell him to please be quiet and leave me alone!这是2019年版高中英语...

问题 than从句，省略主语

...    a part or place that is higher than what is around it.     牛津的overstep的词条解释如下：      to go beyond what is normal or allowed     我想这足以验证than替主语时加what的正确性，但是朗文的例句...

问题 情态动词的否定含义

It is  raining . You (     ) drive fast. A. mustn't B.needn't 答案是A。老师选B 有语法错误吗？请您讲讲 need 作为实意动词和情态动词时的否定形式有什么意义上的区别？谢谢。

问题 这是个什么句子？怎么分析这个句子的成分？

It is amazing how closely they resemble each other.

问题 that be是什么用法

It’s the powers that be who decide things. We just have to live with their decisions.请问这个句子中的 that be是什么用法？如何翻译？