英语知识帮助,though与although的区别?
Second,__theself-employedcanearnconsiderableprofitswithasuccessfulbusiness,lossescanforcethemoutofbusiness,andinsomeinstances,placethemindebt.
这是一个完形填空里的一处空格.横线处为什么要用though而不用although?
(另外insomeinstances是什么意思啊?)