问题 条件句省略和非谓语动词的疑问

.The government managed to have two chemical factories built,though________by the citizen.答案是opposed to ,为什么不选having been opposed to 呢，我查到网上也有though having been done 的用法

问题 otherwise作为否则是后面要加逗号吗，和or有什么区别

问题 once不可以和现在完成时连用，before却可以

I once have had a job on a cruise ship ×I have had a job on a cruise ship before ✓

问题 numerous和abundant这类表示数量的词算限定词吗

问题 Only in this way can you succeed中的in可以省略吗

我想问一下Only in this way can you succeed.中的in可不可以省略？我记得好像是有哪里的in this way中的in直接省略了。求大神解答！

问题 there be 句型中not any的not否定的是be动词吗

There are not any students in the classroom. 这句话中not否定are，any修饰students，对吗？我看到有老师说not和be动词连用不能否定名词。那这种存在句中not也是和be动词连用，所以not是否定be，而不是否定any或者any students？

问题 as...as结构的比较状语从句省略是否和than引导的比较状语分句省略相似

as...as结构的比较状语从句省略是否和than引导的比较状语分句省略相似?这句句子分句省略了宾语，这样子可以吗？The situation now is not as easy as you think.

问题 He shook his head sadly.和He shook his head,sad.的区别

...不仅仅是想想问这两句有何不同，本质是想问：副词状语和形容词作（伴随）状语有何不同？第一句She shook her head sadly.是选自牛津词典上的例句。第二句 She shook her head,sad.是我自己根据“形容词可以作伴随状语”这个语法点...

问题 hardly放在动词前和放在动词后的区别

hardly 在下面两个句子中的位置不同：一个放在动词之前，一个放在动词之后，请问它们有何区别？ He hardly ate anything. He ate hardly anything.

问题 所有格作定语和名词作定语的区别

一，a women's bag,men's suits，a women teacher 二，children’s books，children education.请问老师，这里修饰bag,suit,book为什么要用名词所有格，而修饰teacher,education直接用名词？

问题 重读闭音节和开音节中元音字母的发音问题

重读闭音节元音字母一定发短元音吗，重读开音节元音字母一定发本身音吗？apple帮忙分析一下它的音节。

问题 as的词性和形容词比较级问题

Customers recognized it as sweeter and more tasty.请教一下各位老师1. 这里的as词性是什么?意思是什么？2. tasty的比较级不是tastier吗？为什么可以用more tasty?

问题 翻译和理解: How I was that young.

Then I think how I was that young when I was taking the subway by myself.这里面的how是什么意思，怎么理解？

问题 suggest虚拟语气

She suggested that he tape it to the blackboard at the front of the classroom.在这个句子中，suggest的用法是正确的的吗？

问题 不定式的被动式和完成式可以作主语吗

...一般式）可以作主语，如：To talk with him is a great pleasure. 和他谈话是一件非常愉快的事。但是不定式的被动式和完成式也可以作主语吗？比如可以这样说吗？To have talked with him is a great pleasure. 和他谈过话是一件非常愉快的事。To b...