问题 tired,weary,exhausted,fatigued的辨析

如题, 请问如何区别tired,weary,exhausted,fatigued。

问题 请教一个as的用法

Only after the site at Gonur-depe was excavated were archaeologists able to identify it as coming from Gonur-depe. 请问as在这里是什么用法?

问题 both, neither的用法区别

I think either side, or ______, could possibly take action.A. both    B. neither请问如何选？谢谢！

问题 句首instead of的用法

Instead of a plan of  action, they continue to press for more research--a classic case of ‘paralysis by analysis’.

问题 定冠词的位置

请教老师 first-hand the changes 中为什么the在中间而不是最前面。原句是：He has witnessed first-hand the changes to the oceans and their impact on aquatic life. 

问题 who的特殊疑问句

Who were the newspapers of the new trend targeted at？句式怎么来的，targeted at做什么啊，如果还原were往哪搁？被动也不对啊! 谢谢！

问题 so that的用法

It was a doctor that she introduced herself, and as such she got a VIP card.  老师 请问这个as such（作为）能换成so that （因此）嘛? 

问题 这里的learning是什么用法呢？

Learning to be brave takes practice, so encourage your children to do something courageous every day.

话题 咨询了下外教，她的回答：It's

话题 情态动词的推测性用法和非推测性用法

话题 反义疑问句must表示应该和必须的区分

话题 than后面的句子是倒装了吗， 为什么

话题 "n prep n"，同类结构的顺次处理思维

话题 be drawn 被动句里主谓的逻辑关系

话题 help out with这类短语的所属问题