Is it a problem difficult to solve?求解释,给分啊

Is it a problem difficult to solve?求解释,给分啊 We found________ the problem.A it is difficult to solve B it It is more difficult to solve a problem than that of finding The problem is too difficult for us to solve it. 这个句子里面的it 为 It s______ that the problem is difficult to solve.空里填什么? 求翻译,半小时内To solve the problem is difficult at all, but is wor I find it difficult to solve this problem .(改为复合句) The problem is _____ difficult for me _____ solve. A．so; to this is the problem very difficult to solve It is easy __ the problem.A,for him solve B,for him to solve 一个英语语法问题第一类语法：1、It is a problem difficult to solve.这是一个难解决的问 求英语作文,(主题)SOLVE A DIFFICULT PROBLEM!