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问题 过去进行时与一般过去时

问题：The accident happened when he _______(walk) along a steep cliff at the edge of the sea.请问这里填 walked 与 was walking 有什么区别？

问题 for的用法与理解

我不太理解这里的for是什么意思，对前面China Council的补充，还是什么，该怎么去理解翻译呢?原文：Xi made the remarks when delivering a video address at a conference marking the China Council for the Promotion of international Trade's 70th anniversary.for的意思?

问题 regard,care about表示“注视”区别

regard,care about表示“注视”区别如：Mary regarded the photo carefully.玛丽专心地注视着那张照片。The girl stood there,considering the painting.那个女孩站在那里，凝视着那幅油画。

问题 虚拟语气中的should换成shall,must后还叫虚拟语气吗

... shall 或 must，这还叫虚拟语气吗？或叫陈述语气？比如：The law requires that all drivers wear a safety belt.The law requires that all drivers should wear a safety belt.The law requires that all drivers shall wear a safety belt.The law requires that all drivers must wear a safety ...

问题 句子成分辨析(go untreated和现在分词位置)

1.We discovered that the patient can't feel pain, which is why the appendicitis went untreated,causing a widespread infection.这里go是系动词还是不及物动词？柯林斯词典说是系词，但是牛津词典却没有标注  linking verb，而是标注为v+adj，这说明go是不...

问题 since after是什么用法

Economy is one powerful motive for camping, since after the initial outlay upon equipment, or through hiring it, the total expense can be far less than the cost of hotels.请问为什么两个 since after 连在一起用啊？

问题 句中为什么用 is

The peachful landscape of the "Emerald Isle" and its many counites is a true feast for the eyes, with its rolling green hills dotted with sheep and cattle.句中为什么用is？

问题 冒号后面句子充当什么成分

Chances are that you will not take a seat at the head of the table or midway along either side: these are places where the boss would naturally sit.从语法角度上看，冒号后面的these are…是对前面内容的补充说明吗？它充3当什么语法结构？

问题 if you’ve worked your way into the deepest depths of an enterprise target这句该如何理解

如题，我想过几种翻译方法但都不适合。第一种：翻译成“如果我工作到了最深处，深入到企业目标层面”，但翻译软件显示的是：“如果您已经深入到企业目标的最深处”。此时， deepest 和depths顺序好像反了。  第二种：是把...

问题 省略分析

than后面的句子重复成分能省略嘛？Watching a baseball match is no more intellectual than listening to music is.后面的is能省略嘛？

问题 rush用法

有没有rush sb to do这个结构，我在牛津，朗文，新牛津，柯林斯字典查了都没有，如何求证有没有这个结构 

问题 but的词性

I have no choice but to watching TV.这句话中but是什么词性？

问题 副词用法

It won’t hurt you to talk a little less.请问老师：1. less是副词修饰动词talk吗？2. a little是副词短语修饰副词less吗？

问题 形容词能否共用一个最高级

Chinse Spring Festival is the most magnificent and the most important festival for Chinese.请教老师，原句可以是 the most magnificent and important festival吗？如果可以，两句区别何在？谢谢老师。

问题 be动词有完成时态吗

For forty years Jane Goodall has been outspoken about making the rest of the world understand and respect the life of these animals.1.has been 是is 的现在完成时，那么 be动词时有完成时态的？2.about介词短语充当什么状语呢?