Without friendship,one can't be happy although he is rich en

Without friendship,one can't be happy although he is rich en _____ he is rich,but he is not happy.A Although B And C So D although he is rich,---he is unhappy Although he was rich,__ he is not happy.为什么不用连词? 英语语法问题rich as he is,he isn't happy能否写成as he is rich,he isn't 英语翻译还有：People can’t see things without it。When one is ill he Although he isn't rich ,he---- ----- ----- to help the poor Mr.Poor has_(little)money than Mr.Rich ,but he is __(happy)t 英语改错句:We can't live without friendship He will be rich ,he is rich区别 If you can't let me be happy,please go away without goodbye. one can't be careful when he is driving a car,( 反意疑问句