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问题 welcome sb to do sth 的用法

China welcomes US experts to join the international mission combating the novel coronavirus, Chinese Ambassador to the US Cui Tiankai said Sunday, as the World Health Organization announced an advance team has left for China.查了字典，并没有 welcome sb to do sth 结构，请问这里是什...

问题 这里的 WAS 句意和逻辑如何理解？

My typerwriter is not the machine (that) it was.我想不明白的是：这里定语从句 the machine (that) it was.  it 指 My typerwriter,即上句等于：My typerwriter is not the machine (that) my typerwriter was.问题就是：如何理解 My typerwriter WAS that 或 My typerwriter WAS the m...

问题 demand sth 后面可以只跟一个 adv.吗

来自Reader's Digest中一篇文章中的一个句子：The Moldovans demanded the photos pronto.the Moldovans 是一对夫妻，他们要求能尽快拿到照片。根据the Longman Dictionary，pronto是一个副词。由于我是第一次见到 demand sth adv. 这种结构，所以想来讨教...

问题 限制性与非限制性定语从句的实例比较

限制性与非限制性定语从句的实例比较原句：He was the diligent person who passed the exam. 如果把原句改为：He was the diligent person, who passed the exam. 从意思上有什么区别？从语法上讲对吗？

问题 是不是动词后跟着一个既可作介词​又可作副词的词时,这个词组就可以拆开使用

...下面这种，碰到不熟悉的词组，能这样来判断吗？Blow out the candles. - Blow the candles out.Blow on the cake. - Blow the cake on.Put the toys together. - 不能拆开

问题 句中的 just 好像可有可无

Don't you just love it? 你难道不喜欢它吗？我看有没有这个 just 都一样，请问老师这个 just 是什么意思？什么作用？这是个电影里的句子，两个人在看电影，A 和 B 说了这句话。感谢老师。

问题 请问looking后面引导的成分是定语还是状语？

It left many people looking for a way to get home after finishing their jobs Monday afternoon.请问looking后面引导的成分是定语还是状语？

问题 涉及现在分词的选择题

Having been delayed by heavy traffic,_______.A.it is impossible for her to arrive on time B.it led to her being late C.she arrived late D.her friend thought that she would be late

问题 怎么分清填形容性物主代词和反身代词

请问一下。有一道填空:Letters Alive took _______ (it) idea from a UK program, Letters Live.用its作定语还是itself构成双宾结构，哪个好些呢？拜托老师帮忙，谢谢了！

问题 there be后面的是复合结构还是定语

There is a woman drinking.我看到一个正在喝酒的女人？存在女人喝酒这种现象？到底是哪种翻译？还是说都可以，看语境。

问题 to do不定式的一个用法

老师你们好，我想请问一下to do不定式在这里的用法But a defence does not have to be perfect to be useful.后面to be useful是做什么成分呀？

问题 its=it is, it has, it was

...早。（it’s = it has；因为arrived是不及物动词）It’s made of wood. 它是木头做的。（it’s = it is还是it was? 不好区分！）

问题 找出并列句中第二部分的谓语

Her bones have never been found,as after her death,they were apparently burnt twice over and the ashes thrown into the Seine.讲圣女贞德的骨灰烧了两次扔进了塞纳河。这里后半句the ashes thrown into the Seine为什么没有谓语，thrown是过去分词，不应该是谓语

问题 句首的过去分词短语是提前的定语还是状语

...，请看教辅中的一个句子      Scheduled at 3 pm next Friday in the lecture hall, the contest will have 32 participants, each representing one class.     请问老师，句首的Scheduled at 3 pm next Friday in the lecture hall是修饰the contest的定语吗？     如果分析为...

问题 新概念3(Lesson 28)过去完成时

Before she had anchored, the men from the boats had climbed on board船还未下锚停稳，那些人就已经爬上了船。 爬上船的动作在前，这时还没停稳锚，所以停锚动作在后。我可以理解 had climbed这个时态，为什么 anchor这个动作也要用过去完成时...