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问题 if从句的时态(一般过去时与过去完成时)

She said she would have killed you if she knew the truth.请问if 后面的时态，为什么不是if she had known the truth，谢谢。

问题 职务和头衔名词前到底能否定冠词

...常可见到这样的用法。到底该怎样处理？比较这个句子：They picked Mike as the captain. 他们选了迈克做队长。句中的the用得对吗？

问题 请问lower是副词修饰down的介词短语

请问各位老师和大侠：Lower down the pecking order, however, people increasingly try to put their personal mark on their autoreplies.这句话中lower down the pecking order是介词短语吗，lower是副词修饰down的介词短语？

问题 it had ever made含义理解

In April 1939,the corporation placed the largest order it had ever made.上面这句话中的定语从句，因为使用了过去完成had ever mad，是否表示是“到1939年4月为止最大的订单”，而不是“公司所发出过的最大的订单”，这样的理解是否正确？希望...

问题 if从句为什么用进行时态

If we're only talking about the parts from the Ming Dynasty, it's about 8,850 kilometers long.这是一个答句，问句是问长城多长？这个if引导的从句部分，为什么用are talking about 现在进行时呢？这是人教版八下七单元课文的一句话，谢谢老师们的解答...

问题 人名在特指时可用定冠词吗

...某人，而且是特指这个人的名字，这也可以吗？比如： The man who beat you has left. 打你的那个人走了。 这个句子没问题，因为 man 是普通名词。 但下面这句呢？也可以吗？ The Black who beat you has left. 打你的那个布莱克走了。

问题 此处用occur 为什么不用happen

For one dreadful moment，it _______ to me that if someone had picked the receipt up he could have easily claimed the case already.一篇完形的文章，大概讲一个人去站台领行李。请问为什么不用 happen 用 occur 呢？

问题 as doing 如何理解

They say victims include those seen as being opposed to the terror group’s rule. 请问，划线部分是过去分词短语seen as being opposed to the terror group’s rule 作those的后置定语。be opposed to 是“反对，背道而驰”的意思。是吗？这句话的意思是“他...

问题 定语从句中现在完成时和过去完成时

•We received on February 7 the xx goods that we have ordered, but …该句定语从句中的时态用现在完成时是否正确？可否改成：•We have received the xx goods that we ordered on February 7. but … 

问题 ask sb his name的用法对吗

The old man asked Tom his name and where he lived.请问这个句子对吗？是不是应该改为：The old man asked Tom what his name was and where he lived.

问题 from...to...中的to可以用连字符代替吗

The man lived in the village from 1993-1997.请问这里的连字符用得对吗? 是不是应该改为 from 1993 to 1997?谢谢!

问题 不定式完成进行体的用法疑问

...学生用书第6版（最新版，上海外语教育出版社）211页：The president was reported to have been flying across the Atlantic.我自己翻译的大致意思：据报道，总统一直在飞跃大西洋。这句话在现实生活中，逻辑有问题吗? 怎么会一直在飞跃呢？...

问题 Nearby是做主语吗

Nearby were two ships in which they had come to the island.Nearby were two ships which they had come to the island in.第二句可以这样把in介词后置吗？Nearyby是做主语吗？还是...

问题 “why+名词 ”结构是省略吗

在文章中有看到why+名词的结构，如:Visitors to the UK that have just washed their hands in an old-fashioned sink might be wondering why one tap is solely for hot water, the other exclusively cold. Either can make washing very uncomfortable. So, why this oddity?还有口语表达why me。...

问题 关于这句话的代词和介词的问题

The heap is the runtime data area from which memory for all class instances and array is allocated.这里的which指代什么，还是说只是直译成哪个？from应该怎么理解，在这句话里。为什么最后class instances and array不是用are而是用is?