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问题 ever（曾经）的用法与翻译

Now, a piece of advice if you ever plan to take a calculus exam (or even if you don’t!):ever 是否意思为曾经，感觉翻译不通顺。 

问题 so 用法困惑？

... has troubled to bid her guests, and why the guests have troubled to come. There were ten people. They met with indifference, and would part with relief. It was, of course, a purely social function. The Stricklands "owed" dinners to a number of persons, whom they took no interest in, and so had aske...

问题 小王子第二章中副词、时态、动词用法的疑问

原文：Now I stared at this sudden apparition with my eyes fairly starting out of my head in astonishment. Remember, I had crashed in the desert a thousand miles from any inhabited region. And yet my little man seemed neither to be straying uncertainly among the sands, nor to be fainting from fati...

问题 打在某人某部位用介词on,to还是in

He socked her in the face.Martin received a blow on the nose.He gave her a blow to the head.He punched Jack in/on the face.都是朗文上的例句，也都表示打在某人某部位，为何有的用in有的用on有的用to？请问这里有啥门道？

问题 位移动词和将来时态问题

...k, they__ soon.A will die.     B are dying.答案是B还有My birthday is coming next week.   die come 都是位移动词，用现在时或者现在进行时代替将来时，但是这个句子:I don't think he ____until next monthA is coming     B will come同样是位移动词come 为什...

问题 what做从句的主语的问题

老师好，麻烦您帮我解答一个问题。谢谢“what is crucial to a successful classroom is to involve students.”the professor said.（be crucial to）“一个成功课堂的关键是让学生参与进来。”那位教授说1．划线部分为什么使用what做主语2．what is crucia...

问题 too...to还是enough to?

...训班的一道题，根据例子改写句子。Three people can't sit on the sofa. It' isn't wide enough.  （给出的句子） This sofa __________________________________（改写） A. is too wide for three people to sit it. B. is too wide for three people to sit. C. is wide en...

问题 冒号后面的句子结构分析

原句：In terms of attitudes to creativity there seems to be a reversal of priorities: young Westerners making their boldest departures first and then gradually mastering the tradition; and young Chinese being almost inseparable from the tradition, but, over time, possibly evolving to a point equa...

问题 a most（非常）可以修饰单音节形容词吗

...我也知道most可表示“非常”，前面连用不定冠词。如：This is a most useful book. 这是一本极有用的书。You’re a most unusual person. 你这个人可真与众不同。We heard a most interesting talk about Japan. 我们听到了一场关于日本的非常有趣的谈话...

问题 ever和not的位置关系？

...ntee voting, but never in the historyof the federal elections have we ever not held an election, and we should go forward with our election.我理解总统对邮件投票的担忧，与缺席投票不同，但是在联邦选举的历史上我们从来没有取消过一次选举，我们应该继续...

问题 形容词uninvited相关疑问

...ks highly of the notion that the information flowing onto the screen comes there by specific request.Once commercial promotion begins to fill the screen uninvited, the distinction between the Web and television fades.That's a prospect that horrifies Net purists.

问题 from where 和 from which 辨析区分？

The air then passes to a compressor, where it is compressed, and from which it is delivered to the combustion chambers.在and from which it is delivered to the combustion chambers. 为什么不是from where ？ 用from which 和 from where究竟理解上有何不同？

问题 doubt 后面的连词用whether/ if或that，不知有何规律可循

a) I don't doubt that John will come on time. 我相信约翰一定会准时到。 b) I doubt if he is honest. 说他老实，我看靠不住。 doubt 后面的连词用whether/ if或that，不知有何规律可循?

文章 “Since”时间从句中的谓语形式和意义

...egun. 自电影一开始，我奶奶就一直在打瞌睡。三、在“It is + 时间 + since-从句” 的结构中，情况则不一样。它表示从过去某一时刻起到现在（说话时刻）为止的一段持续时间的总和，从句中通常都用一般过去时，但无论用持续性...

问题 I have come to see xxx为什么用现在完成时

-Good evening. I _____to see Miss Jessic.-Oh! Good evening. I'm sorry, but she is not in.A. came  B. come  C. have come D. had come给出的答案是have come，为什么会用现在完成时呢？自己做题的时候就只能排除一个had come。came和come又该怎么排除呢？