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问题 When引导时间状语从句的时态问题

请问这句话 Their mothers were looking at the children when they played. 正确吗？play是延续性动词，为什么不能用过去进行时were playing？

问题 that可以改成whether 吗

As the financial crisis worsens, his father is worried about that he would lose his work.这里的that可以改成whether 吗？变成他的父亲担心他是否会丢掉工作，在语法上是成立的吗？谢谢老师们的指教！

问题 grass-roots 的问题

The Energiewende raises cost, unsettles supply and provokes resistance at grass-roots level.grass-roots level，这里grass-roots作定语，为什么要加s？不加是否可以？

问题 albeit不是连词conj吗

albeit不是连词conj嘛？连词不是需要两边同一个成分，就是两边都是短语是短语句子是句子。 //She appeared on the show, albeit briefly. //It was an amazing computer, albeit expensive. 为什么这里不是？还是我对conj理解有误？

问题 there加不及物动词的句型成分分析

请问老师：There exisit numerous elements being responsible for the issue.这句话中的being responsible是作为状语修饰exisit的吗？

问题 should have done 的理解问题

He should have left by the time you arrive.在书上看到说，should have done 表示“本来应该做但其实没有做”，但是上面这句这样理解不了吧！

问题 现在分词和过去分词做状语的使用

We bury ourselves in social activuties, consumed with gains and losses, and thus neglect our family.上述句子中，我想用“be consumed with”做状语修饰主语“we”，我应该用“consumed with”还是“being consumed with”？

问题 big conclusion是什么意思

It was big conclusion to draw from a single fragile genome, so Willerslev decided to contact living Aboriginals to see if they would participate in a new genetic study.big conclusion是什么意思？虽然我能猜个八九不离十，但还是想找到其准确释义。

问题 这里是否是一般现在时表示将来时间

句子：By refusing discuss it，they usher in something worse.个人判断表示将来时间，something worse的发生是极其肯定的，以至于用一般现在时。我的疑问在于：这里为什么没有时间状语？

问题 句子成分的理解及翻译

...二个句子的问题。原句为“Across all her imaginative adornment of those whom she loved there darted now and then a keen discernment which was not without a scorching quality.”译文为“尽管她总是把她所爱的人想象得十分美好，有时也会向他们投出一道犀利的...

问题 be to do 的用法

我知道 be to do 是表责任，我在经济学人的文章里看到这样一个句子：He was to become the first American president to visit Hirosima.请问这里的 be to do 是什么意思啊？

问题 可以说 visit an exhibition 吗

下面句子中的 visit this exhibtion 用得对吗？Visiting this exhibtion, we will not only enjoy the folk art works, but also learn a lot.

问题 with+宾语+不定式做宾补

The wounded man lay there groaning,with no one to help him.老师，这里的to help him.表示的是与主句谓语动词是将来关系还是同时关系?

问题 句与句之间，连接的使用问题

Infants sleep sixteen to eighteen hours daily, the amount gradually increases as they grow older.这两个小句中并没有起连接作用的连词出现，为什么后面的increase不用非谓语形式increasing？

问题 定语从句省略补充

...igh public debt and low interest rates have left limited room to act, when the next downturn comes , which inevitably it will.老师好，请问最后which句子will省略了什么？想是省略了come，且书上翻译的是"下次低迷不可避免地到来"，但which如何解释？我...