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问题 关于情态动词的一道选择题

You can have a website with a few pages of basic information about your shops but it __________ be very complicated. A. should B. needn’t C. doesn’t have to

问题 求解长难句理解

Until these issues are resolved , a technology of behavior will continue to be rejected,and with it the only way to solve our problems.这个句子太难理解，后半句根本看不懂意思and with it the only way to solve our problems.主要是这个地方，，，求详细讲讲

问题 定语从句中关系代词which的指代问题

As a result, we always become concerned about PM2.5,a high level of which does great damages to us.这个句子中 which 指代什么？怎么翻译？

问题 请分析下这个句子的各个成分，谢谢。

I personally looked upon the forging of firm Sino-American ties as a historically significant experiment.有Look upon as 这个词组在，我就有点晕。总觉得一个词组是不是整体应该作为一个成分。

问题 attach importance to sth 的倒装

This view of time affects the importance we attach to patience.attach importance to sth 重视 sth 的意思。这后半句话是倒装吗？但看着又像定语从句。

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？