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问题 but与however后面跟逗号的问题

... days later, a letter arrived, calling me to Groydon for an interview with the headmaster.

问题 Not limited to可以作为句子开头吗？

Not limited to可以作为句子开头吗？比如：Not limited to this, the information further includes...

问题 如何区分fact是可数名词还是不可数名词

It's said that the book is based on fact. 据说这本书是根据事实撰写的。这句中的fact是用作不可数名词？请问可以换成facts吗？即把fact当作可数名词来使用。如何区分 fact 是用作可数名词和不可数名词呢？

问题 口语中Good for you的用法

—Mummy, I've finished all the work you assigned me.—_______.A. You are goodB. It's good for youC. It's good to youD. Good for you答案为 D，请问为什么？B 为何不行？ 

问题 some何时后接单数可数名词表示“一个”

《麦克米伦高阶英汉双解词典》some 词条指出：some 也可以“后接单数可数名词”，例句是：She married some guy she met on the boat. 她和在船上遇见的一个人结婚了。请问，some 在什么情况下可以表示“一个”，后面接单数可数名词？

问题 and是否可以在同一个句子里连用两次

请问：and 是否可以在同一个句子里连用两次？请问：Alice had an adventure in the wonderland,and met some strange people and animals.这个句子是否有误？谢谢！

问题 great advances,huge advances,big advances的用法

Science has made _______（大） advances in the last fifty years.答案是 great，请问填 huge, big 可以吗？

问题 感叹句的谓语动词有没有要求是及物动词

What a beautiful belt you're wearing！谓语动词一定是及物动词吗？有没有感叹句的疑问形式？What the meaning is that? 这个 what 是限定词？

问题 虚拟语气由直接引语变为间接引语如何处理

Tom said, “If I were you, I would do the same.”请问老师这句话改间接引语，时态该怎么转变？ 从句一般过去时是否变为过去完成时 had been done? 主句 would do 属过去将来时，这个该如何转变？是否有特定的规则？

问题 find sth difficult to understand 如何分析句子成分

He found the text difficult to understand.这句话中的不定式是做什么成分？

问题 先行词为人时关系代词用who,that何区别

The boys ______are playing football are from Class One.这道题是不是填 who 和 that 都可以？

问题 prove现在进行时意思存疑

Six men have been trapped in a mine for seventeen hours. If they are not brought to the surface soon they may lose their lives. However, rescue operations are proving difficult.  以上摘自新概念2的一篇课文。请问老师这里prove为什么用现在进行时？证明就证明了...

问题 half a world away所做的成分

Almost immediately word flashed on the internet and was picked up,half a world away,by John Hofsess.请问这里的half a world away 是形容词词组吗？作什么成分修饰谁？

问题 somebody else, somebody's else比较

His isn't fit for the work. Please get me ________. A.something else B.somebody else C.someone else's D.somebody's else请问老师这题怎么分析？

问题 can survive falls from...为什么有两个动词？

That cats can survive falls from great heights is supported by the facts.为什么同时有survive 和 fall 两个动词？