what can ____by us to solve the problem

she explained to us _____ A.what did she solve the problem w what do you think you can do to solve the problem I really don't know what I can do to solve the problem.(同义句改 What do you think( )solve the problem.A.you can Can you find the ＿＿to the problem.(solve) help to solve the problem? it's a good way for us to solve the problem by learning to f The problem is too difficult for us to solve.=The problem___ -Can you help me solve the problem? I can solve the problem,too Can you solve the problem (恰当的)? what do you think ----solve the problem