I wonder __ we can solve this hard problem.A.wh

I wonder __ we can solve this hard problem.A.wh I wonder ______we can solve this hard problem.为什么要用 how else How can i solve this problem Yesterday we __ an expert to help solve this problem.A calle i wish i __(know)how to solve this problem. I can help you to solve this problem. This is a s_____ problem.We must solve it can,we,learn,solve,a,to,forget,problem,by,it we can solve a problem by learning to forget 通过这种办法你可以解出这道题目.___ ___ ____ __ ,you can solve this problem. 英语求助can you tell me the __（solve ) to the problem ?I can't u I have a problem __ this watch.