请帮忙分析,为什么Many theories concerning the causes of...请帮忙分析,为什么Many theories concerning the causes of.中,concerning要用ing形式

请帮忙分析,为什么Many theories concerning the causes of...请帮忙分析,为什么Many theories concerning the causes of.中,concerning要用ing形式 There are many sides( to a story) and many ways( to understand ) it请问这句话为什么用to 是什么句式结构?请帮忙分析并翻译, 请帮忙分析,越快越好, 请帮忙分析下这两题, 请帮忙分析一下句子成分 请帮忙分析一下这个句子的成分：the beautiful garden planted with so many nice trees and flowers. 请高手帮忙分析一句话的语法,请问这是什么语法结构.many teachers are sick of bearing their students say that...为什么bearing their students 后面接的是say呢?bear sb do How many books are there in your schoolbag为什么不能写成How many books are i请仔细分析,为什么不能写成How many books are in schoolbag？ 请帮忙详细分析整个英语句子结构.另：who修饰哪个词；为什么many more are后面能接there to?It should not be forgotten that for everyone who steals,many more are there to spend their money--- to the advantage of both the shops 请高手帮忙分析一下为什么Vn=Vo=Vp? 化学有机题,请帮忙分析下 请帮忙分析这个光控灯电路. 英语翻译请帮忙分析下句子结构 请英语高手帮忙分析句子结构 五年级数学,请帮忙分析一下! 请帮忙,怎样进行灵敏度分析 帮忙看看,如果错请分析下 请帮忙分析下此题