问题 不定冠词的省略问题(be a writer与turn a teacher)

She was a writer before she turned teacher.She was writer before she turned a teacher.She was a writer before she turned a teacher.请问以上三句，哪句正确？为什么？

问题 请问It is a case where you need to be short-sighted

问题 as doing sth 作什么句子成分（be quoted as doing sth）

The president was quoted as saying that he would not stand for re-election.请问这里的 as 做的是什么成分？

问题 关于定语从句没有谓语的问题

We need to have actual knowledge on which to base our thinking.第一个句子为什么定语从句只有不定式没有谓语动词？we need to have actual knowledge which to base on our thinking.第二个句子也是，为什么都是to开头的？

问题 介词短语的句法分析

I had remarked on one side of the road, at intervals of six or seven yards, a line of upright stones, continued through the whole length of the barren.on one side of the road, at intervals of six or seven yards这两个介词短语是在从句中作什么成分呢？谢谢老师。

问题 vision单复数

There rose in his imagination visions of a world empire.对应的中文翻译：在他的想象中出现了一个世界帝国的幻想。句中visions是否要改成a vision ?

问题 从句分析

There is a moving viewpoint which travels along inside that which it has to apprehend.请教老师这句话的语法结构，我完全糊涂了：我想的是：第一个which是从句的主语；That是宾语从句的关系词吗？还是代词呢？第二个which引导的是定语从句吗？

问题 这里的grumbling是名词还是动词

There have been grumblings about the party leader.

问题 ​短语翻译

...。 Getting it is getting it.Not getting it is not getting it. Being is being.Being not is being not. Love is love.Not loving is not loving. 

问题 将来进行时的疑问

(1)I'll be doing her job today.用 will be doing，比用 will do 在这里有什么差别？ 感觉这里用将来进行时很难理解...(2) The train will be arriving in a few minutes. be arriving 本身已经有将来时作用了，那用will有什么作用啊？

问题 be always doing/has alwa​ys been doing用法问题

In the past the big clock __ the hours.请问这个空格处,为什么不能选择 "was always striking" 或 "has always been striking"  ,"过去总是",或者"过去一直",不是也说得通吗?

问题 A be rooted in B 即B是A的基础

I have always been an optimist and I supposed that is rooted in my belief that the power of creativity and intelligence can make the world a better place.这句话是因为有了信念才乐观的嘛？

问题 动词不定式的问题

A: Is my wish to become a scientist possible(        )?B: Yes,your wish is sure (        ).A. to realize, to realize       B. to be realized, to be realized.C. to realize, to be realized  D. to be realized, to realize请老师讲一下这个问题。

问题 关于no loss of的疑问

...了开始的一部份内容，请老师大概看一下：The first human moon landing happened more than 50 years ago. But did you know that human astronauts were not the first Earthlings to travel in space and circle the moon?That honor goes to two Russian tortoises and several smaller creatures th...

问题 百分号％后面为何没有介词of

下面这个句子的5%后面为什么没有介词of？ The staff receive 5% commission on everything that they sell. 可以这样说吗？ The staff receive 5% of the commission on everything that they sell.