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问题 a metal framework(为啥用不定冠词)

The actual figure was made of copper supported by a metal framework which had been especially constructed by Eiffel.请问老师，为啥用不定冠词a metal framework，我觉得应该用定冠词the metal framework，因为这个名词被定语从句修饰了。

问题 shocked to do 不定式和状语

And the man was shocked to wake up and find the tide had come in and completely surrounded him, cutting him off from the shore.请问老师to wake up是作什么成分呢？cutting him是作结果状语吗？

问题 关于have difficulty / difficulties in doing sth

看到有的书上说 have difficulty in doing sth 中的 difficulty 是不可数名词，不能用复数。但我看到了这样一个句子，difficulty 用了复数 difficulties：We had difficulties in finding his office.

问题 upon在这里等于on吗

...的句子：Strong winds blew upon the unlucky city and those whose homes had once stood in its green hills.请问句子里的upon能替换成on吗？我觉得不能替换，因为on是表示在“与物体接触的表面上”；但是不能替换的话，这里是upon独立的用法吗？另外有...

问题 为什么用过去完成时

... bid to run its China operations for the next 20 years on Monday.  A. had won  B. won  C. would win  D. has won这题的答案是A。请问为什么不能选B？不是应该宣布时才知道谁获胜吗？怎么会表示之前的概念？

问题 一个涉及see用法的时态问题

I haven't met him for ages, but his mother ________ him sometimes.A. had still seen     B. still sees     C. has still seen     D. still saw老师，这道题我选的是C可答案是B。请问这是问什么？

问题 为什么longer后面不需要再接名词呢

It took her longer than she had expected to get a passport.longer 本身不是形容词或副词吗,那为什么longer不需要再搭配time呢?(像more time这样.‍)

问题 作表语的不定式为什么没有to

您好，请问下面例句中做表语的不定式为什么前面没有to?After four days in a hospital, John was fired. And all he had done was go outside and get the license number.

问题 英语中宾语和状语前置问题

...面来的？还有一句话是：Trying to reduce the amount of drugs she had almost never worked. "Trying to reduce the amount of drugs"是不是状语放在前面？

问题 虚拟语气的动词形式

...的主句和从句中出现的几种动词形式形式：动词过去式，had done,  should/would/would/could+do, would/should/might/could+ have+done这几种形式？

问题 issue + (with / for / of) 有什么区别

请问老师  在例句中 issue后接 with / for / of 时, 它们有区别,怎么来辨别什么时候该用哪一个(是否 of 比较适合)?I had gone through the Serial Number in our system, and it has some issue (with / for / of) its warranty.

问题 现在分词短语做什么成分

... local varieties like Russian rock and Australian country music.2 Rock has had an influence on popular music, transforming the very concept of what popular music is.请问老师：1 以上两个句子的现在分词短语都是做状语吗？2 leading的逻辑主语看不太懂；transforming的逻...

问题 现在分词可以用作目的状语吗

...突然想起我也有一个类似的问题：I phoned again, making sure I had the right number. 我再打了一次电话，为确实号码是对的。请问这句话中的 making sure…是目的状语吗？如果是，那就说明现在分词也可用作目的状语了？（注：我在答疑网...

问题 would rather填空问题

...下4个句子中括号部分只能填did结构吗？  我4句全填了had done结构，这样就不对吗？I'd rather he (left) earlier.  （leave）I'd rather you (didn't speak) to him.  (not speak)I'd rather my father (settled) the account.  (settle)She'd r...

问题 主语和宾语逻辑关系问题

老师您好。美国语文第4册第15课有一句话：The house had been left in charge of the servants. 中文翻译为：房子留给佣人们照看。逻辑上似乎应该是 房子照看佣人，而非佣人照看房子。因为牛津词典上charge词条有一句话：They left the au pair i...