It won't work; ____,it would take too long,and secondly it would cost too much.A.start with B.to begin withC.at first D.begin with为什么c不对?

It won't work; ____,it would take too long,and secondly it would cost too much.A.start with B.to begin withC.at first D.begin with为什么c不对?
It won't work; ____,it would take too long,and secondly it would cost too much.
A.start with B.to begin with
C.at first D.begin with
为什么c不对?

It won't work; ____,it would take too long,and secondly it would cost too much.A.start with B.to begin withC.at first D.begin with为什么c不对?
应选B吧.
英语中首先 ,其次
是first ,second 或 firstly,secondly ,一般放在句首 ；
firstly副词词性,首先.常引导一件事的第一步,后往往出现“Secondly”这样的词.选项中没有first ；
C项 at first 是开始的意思 ,后边一般接then 之类的,它跟后边的secondly不搭
其它的说法
首先Firstly,first of all,to begin with,to start with
其次Secondly,moreover,next,then,in the second part
第三/最后thirdly,futhermore,in addition to that
finally,at last,in the final part,in conclusion,in summary

C
最开始

C的意思是“起先，最初”，只表示在开始的时候，不能表示顺序，而此处需要的是“首先，第一”