Undoubtedly和no doubt有什么区别?

Undoubtedly,to have a good comm and of knowledge is everyone's dream. Knowledge can benefit us a lot.First,it c an make us wise.knowledge can help d o our things well.Second,it enables us t o enrich our l 翻译成汉语怎么说

求解一道句子改错题
Undoubtedly,more voters in the urban areas【 will have voted 】for J.M if she had taken a less conservative stand on zoning codes than she did.
括号内的为什么错 该怎么改.

Undoubtedly, life teaches us not to regret over yesterday, for it has passed and is ________ our control.

[ ]

A. against B. beyond C. among D. in

下面这句话有没有语病,急.
××× is undoubtedly a good mother,someone she can look up to and set an example for her.
想表达的是“某某毫无疑问是个好母亲,是她所能敬仰的人,是为她树立了榜样的人.”
如果错了的话帮忙修改.希望不要变动大体框架,也即排比.
=打漏了，本来打算打的是
××× is undoubtedly a good mother,someone she can look up to and someone who has set an example for her.
哪个对还是两个都可以还是都错了？

英语翻译
1998 was undoubtedly the year of the merger.More companies together in deals that totaled $2.25 trillion and created the world’s largest ever bank and the world’s biggest oil company.Faced with plummeting oil prices,oil giants Exxon and Mobil sought to achieve economies of scale through a $ 250bn.merger.
There are several factors behind the increase in mergers and acquisitions.Firstly,the accelerated rate of globalization has left companies desperately seeking overseas acquisitions in order to remain competitive.Deutsche Bank bought its way into the US with its takeover of Bankers Trust,whilst Siemens hopes that its acquisition of Matra,the French defence group,will allow it to gain access to France’s railway business,which is dominated by Alstom,the Anglo-French consortium.

undoubtedly和 doubtless（ly）有区别吗?
注 doubtless 本身也有副词,doubtlessly也是副词……

相当迷惑
书中讲可数名词不可单独使用
可范文中有 Television is undoubtedly one of the most powerful means of communication in the history of
humankind,rivaled only by such other forms of communication as the Internet,the telephone,
movies,and,of course,simple,low-tech speech.

英语句式语法分析
undoubtedly can we draw the conclusion from what has been analysed above that he was right
这句话有语法错误吗?请分析分析这句话
谢谢

films are undoubtedly the most influential art form of 20th century.翻译中文。