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问题 that upside down 结构分析

That lamp, in the natural course of nature, couldn't burn like that upside down.that 是代词，upside 是名词，down是介词，修饰upside，对吗？请老师分解析结构，我在网上看upside down是副词用法，前面还有个that什么意思

问题 so small后面接名词的用法

It would not prove difficult in a village of _____ siza.A. a such small   B. so smallC. the smallestD. so small a请问该如何选择，为什么？

问题 should recession strike 是什么意思

The answer is that long-dated bond offer the prospect of a bigger capital gain should recession strike.这句话should recession strike 是什么意思？不是应该是in recession strike吗？

问题 如何理解 and that

The researchers found that babies already showed a wide range of "speaking" ability through gestures, and that those differences were closely linked with how frequently their parents used gestures to communicate.请问老师，如何理解 and that ？是 作found that的并列？还是 ...

问题 V-ing分句理解（实例）

Police used water cannon, tear gas and truncheons, reportedly removing masks from demonstrators they arrested, and a number of people were injured. 这里的V-ing分句（黑体部分）作何理解？

问题 toy with的理解问题

With surging obesity levels putting increasing strain on public health systems, governments around the world have begun to toy with the idea of taxing sugar as wells此处的toy with 是什么意思？网上的意思是不太认真地考虑，可感觉这里好像不是这种含义？

问题 It takes...的用法疑问

It takes years to learn and master how to do each of the tasks it takes to build a house or renovate a kitchen.不懂第二个it takes什么意思，在句中作什么结构成分，只感觉it像是形式主语，但是takes为什么这样用？

问题 不定式做目的状语有时态变化吗

______  the convenience of digital payment, many senior citizens started to use smartphones. A. To enjoy  B. To have enjoyed

问题 as...as possibly的用法疑问

The goal of migrating is to upgrade your configuration to the new software version as smoothly as possibly.  不是as...as possible不是固定的吗？这里为什么用 as...as possibly?

问题 句末单独的with起什么作用的

句末单独一个with是起什么作用，并没有具体用什么东西来修理啊？ to mend是目的还是定语呀？ He has collected lots of scrap metal to mend boats with.

问题 一道关于过去完成时的题

Within minutes of the Pulitze news conference last Monday,Daniel's website biography ________to include the prize. 一道单选时态题 答案是 had been updated 为什么是这个 过去完成时应该要过去的过去 而这里显然更新是在conference后的。

问题 face的主语能是物吗

one of the problems facing mankind today is racism. 这句话中的facing与mankind主谓关系是什么特殊用法吗？另外，face的主语可以是物吗？比如to alleviate the challenge facing the special problem中的facing是challenge的定语吗？

问题 What引导的从句

That the seas are being overfished has been known for years.What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing.They have looked at half a century of data from fisheries around the world.各位老师，下划线部分，what引导的是什么从句？

问题 where和in which互换

刘老师可以帮我看一下这个句子，where可以换成in which 吗？今晚问了很多人有的说可以 有的说不可以，现在已经混乱了You might try your luck in Beijing, where there are a lot of job opportunities.谢谢老师了

问题 from which语法看不懂

"of" is used to indicate something from which position or reckoning is defined这算啥句子？定语从句？意思能看懂 但是分析不出结构。怀疑是    indicate that  sth is defined (from xxxxx ）