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问题 省略句的时态用he did还是he had

The man denies that he broke the window, but I’m sure he ______. A. did    B. had答案是 did。但为什么不用 had 呢？

问题 情态动词的句式的若干用法限制

情态动词有许多句式限制，比如对现在或将来的推测，can 和 could 两者均可用，但can 通常只用于否定句或疑问句中，一般不用于肯定句，而 could 则可用于肯定句、否定句和疑问句；对过去的推测，应在 can, could  之后接动词...

问题 too ...to...句式的中文理解与翻译

Being a man without principles of his own, he is too ready to yield to others' ideas. 由于没有自己的原则，他非常容易屈服于他人的想法。这是一本文法书看到的例句和中文翻译。too...to 一般的解释是“太……而不能……”，但是上面这一句翻...

问题 请问：最后一句中的tentpole是什么意思

Box-Office Preview:‘Captain America: Civil War' Storms Overseas on Wednesday12:01 PM PDT 4/26/2016 by Pamela McClintock‘Captain America: Civil War'Courtesy of Film Frame/MVLFFLLC/MarvelThe tentpole is opening internationally a week ahead of its U.S. debut.请问：最后一句...

问题 非谓语动词能作状语修饰非谓语动词吗？

Thankfully,you have survived the experience to live to talk about it.我知道to live引导一个结果状语，但仔细分析，to talk abut又是作什么成分？是作目的状语还是live的结果状语亦或是live的宾语？非谓语动词比如不定式能做状语修饰非谓语动词吗...

问题 一道复结构的选择题(主动关系与被动关系)

---Come on,please give me some ideas about the project.---Sorry.With so much work ____ my mind,I almost break down.A.filledB.filling C.to fillD.being filled答案为B怎么理解work 和 filling 之间是主动关系呢？work与filling 不是被动关系么？谢谢!

问题 without exception to my knowledge是什么意思

And as discussion of language acquisition becomes more substantive, it moves to assumptions about the language organ that are more rich and domain specific, without exception to my knowledge.请问：without exception to my knowledge是什么意思？

问题 为什么时间状语从句中 用现在完成时表将来

为什么时间状语从句中用现在完成时表将来:He will come to the party the moment he________ his work.A.finishingB.finishedC.has finishedD.had finished答案为C。如果有答案 finishes 可以么？

问题 sky前面用不定冠词还是用定冠词

We can never expect ______ bluer sky unless we create a less polluted word.It was a cold winter night and the moon was shining brightly across ______ night sky.第一空a，第二空the。都是名词SKY为什么冠词不一样呢?

问题 every of,none of,either of的区别

We’ll not see _______ the animals in the winter.A.every of     B.none of    C.either of    D.all为什么不选B?

问题 have to是否为情态动词(后接动词时如何区分谓语)

老师您好:Fifteen policemen had to push very hard to get him off the main street.疑问：have to 是否为情态动词？网上说法很多。本句中谓语是 had to push 还是push?谢谢，盼复！

问题 这个when引导的是定语从句还是状语从句

I was walking and reading in a P.E. class during my second-to-last period of the school day, when I saw a girl walking alone with her head in a book as well.请分析这个when引导的是定语从句还是状语从句？

问题 做表语的名词后面跟的不定式是什么成分

She was the last woman to appear on paper currency in theUnited States.the last woman 后面的不定式 to appear on paper currency in the United States 是用作 the last woman 的定语吗？还是补语？

问题 并列句还是结果状语从句(涉及and so...)

It was not a valuable book, and so a poor man who could read very little bought it for a few coins.这里的 and so 怎么理解？如果是并列句直接用 and 连接不就好了？ 如果是结果状语从句，直接逗号加so不就可以了？为什么用and so？

问题 如何简单明白地理解：定冠词和不定冠词

老师，定冠词和不定冠词的用法有很多，无论在什么用法中，它们的根源含义是泛指和特指，也就是说和the连用是特指的含义，和a连用是泛指的含义。在说明白点就是定冠词the各种用法中均有特指含义，不定冠词a在各种用法均...