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问题 复杂句中时态问题

The research found that people who watched a movie in 3D had improved cognitive skills compared to those who watched it in 2D.前三处谓语时态对吗？可以换用其他时态表达同样意思吗？过去完成时是相对哪个过去动作？第二个谓语动词应该先于第三个，但从...

问题 如何理解pending an investigation这个伴随状语

The International Tennis Federation said it would suspend her from March 12th, pending an investigation.请问：如何理解 pending an investigation 这个状语？

问题 that引导哪几种从句

She wasn't sure that she liked the look of them.I am sorry that I broke your pen.第一句 that 是引导宾语从句？第二句 that 是引导原因状语从句，还是相当于原因状语从句？请问 that 什么情况下引导状语从句？

问题 无逻辑主语的分词状语例句分析

Having grown up in Lausanne, Switzerland, the Bay Area's progressive spirit came as a shock when I arrived in San Francisco in my early 20s.上文划线部分好像没有逻辑主语，请老师帮忙看看，这句话正确吗？感谢回答。

问题 虚拟语气省略should是英国英语还是美国英语

He advises that we (should) leave early the next day.这里的 should 是可以省略的。请问：省略 should 是什么英语？英国英语还是美国英语？

问题 women by tradition中的by如何理解

老师请看以下句子：In the west, women by tradition wear white wedding dress while they get married.请问句子中的 by 如何理解？谢谢老师！

问题 表语指物时为什么能用人称作主语

Was I to be the cause of her death too?老师，为什么表语可以是有生命的东西？

问题 all的词性（判断是否是代词用作同位语）

It all comes down to money in the end.all是代词吗，相当于it的同位语？

问题 现在分词的一般式与完成式

 ______from Buckingham Palace, this trip takes you to the best of London's sights.请问为什么用Beginning？ 不是非谓语动词begin在谓语动词take 之前用having begun吗？

问题 How far along的用法

Oh, yes. You were looking at variations in climate in the Grant City area, right? How far along have you gotten?how far along 不是问怀孕多久了吗？  还能这么用？请教老师how far along的用法还有那些？

问题 after being submerged 是被动表示主动吗

She was taken to  the hospital after being submerged in a river.这里的after being submerged是被动表示主动吗？该怎么理解？

问题 to be doing 怎么理解

例: The child doesn't appear to be learning quickly.1。不定式不应该表示还没发生的事情吗？ 为什么和进行时态的be learning搭配呢？2。如果这个句子否定 not to be learning 而不是 doesn't appear ，意思一样吗？

问题 独立主格结构中不定式可以主动表被动吗

The manager looks worried, many things to settle.  请问这里为什么不是to be settled？

问题 was falling apart

The pie was falling apart as I tried to serve it.正当我想要把派端上桌时，它却突然碎成了好几块请教老师.was falling apart  进行时 不是应该翻译成 "快要碎了"的意思吗为什么在韦氏字典里这段是翻译成  "碎成好几块"

问题 as的用法

...是连词？这里有省略吗？为什么不用so或者very呢？2.I saw the debate. I think you came across as honest and open, ma’am.这个as又是什么用法，为什么不直接用so呢？难道单独一个as能表示so的含义吗？