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问题 finishing, having finished, after finishing 的区别

_______ lunch, they discussed the case. A. Having finished B. Finishing C. After finishing 曹老师好，上题答案是什么？三者区别是什么？请老师分别说明。感谢曹老师详解。

问题 for是表示时间短，还是为了意思

No deep meaning, no bigger motive. The only goal was to be silly, if but for one afternoon. 这句话的but 是只是的意思吗？修饰后面的for？这个for是表示一个时间段？还是为了的意思？只是为了一个下午还是只是一下午？

问题 年龄表达用法疑问

Jackson conducted a 16-month survey of Internet use by youth age 10-18.请问这种表达正确吗

问题 关于后置定语修饰问题

staffing of government affiliated institutions这个短语过去分词是修饰的staffing吗？

问题 As的用法

To represent or speak of as contemptible small or unimportant; disparage请问as在这里是什么用法？

问题 这是强调句吗

It was a part of town that seldom saw a policeman.这是个强调句吗？主语是谁？

问题 句子的并列主语，谓语与并列句的省略有什么不同

You can come and live with us in London.把can come and live 看成是并列的谓语，还是省略之后的并列句？

问题 like this 前面不可以用复数名词吗

有这样一道改错题：In small village like this, everybody knows everybody else.参考答案是在 small 前面加不定冠词a，我的改法是将 village 改为复数 villages，但老师没有给分，理由是后面接的 like this 表单数，所以前面也要用单数。请专家老师...

问题 without+名词+having doing结构分析

Suppose a collector with a bill for paints, paper and canvas should, in traversing this route, suddenly meet himself coming back, without a cent having been paid on account.请老师分析一下without a cent having been paid on account语法结构，其中，having been paid on account是现在分...

问题 定语从句被修饰词有词将他们分开 用that 还是which

What happened in grade 7 (    ) was special.

问题 词典英语释义的疑问(do their job,made to feel,feel a failure

...13页和中salary的解释都有这么一句话：money that employees receive for doing their job...我的疑问是：为什么这句话中的job不用复数形式？2 .   在《牛津高阶英语双解词典第八版》对 foolish 的第二个解释是这样的： [not usually ...

问题 when, as, while, since的区别

_____ Tom waited for the exam result, he became less and less patient.  A. When    B. As      C. While   D. Since 答案为 B。请解释一下 when 与 as 的区别，谢谢！

问题 英语长句分析（涉及that从句,if从句等）

But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten.1. 这里的 that 作用，什么从句？2. 这里的 if 又是什么？3. are forgotten?

问题 英语里方式状语从句存在主将从现吗

The boy will do his homework as his mom required.(这句话里如果是说妈妈明天要求写作业 然后孩子才去做作业 那么是不是也要用过去时？）如果改成将来时 意思是不是按照将要要求 岂不是说先做再要求？谢谢老师的回答！

问题 这道题一点思路都没有了

It was not until man had learned how to make iron and steel that the constructionof various machines _ possible.A.were madeB.had madeC.madeD.was made请老师帮我仔细划分句子成分再逐一给四个选项解答，最后在详细说明not until的用法，谢谢。