we can't work out the physics problem .canyou tell us _____

we can't work out the physics problem .canyou tell us _____ We can't work out the physics problem.Can you tell us------- The physics problem is so easy that I can work it out.(同义句两种 The problem is very difficult.We can't work it out.The probl the problem is very difficult.we can't work it out.(合并）the p the problem is very difficult.we can't work it out.(合并一个句）th we can't work out the maths Problem()your help.A.with B.with the problem is so difficult（ ） we can't work it out I don’t think we can find a new day to work out the problem. The problem is very difficult.We can't work it out.(51.合并） how can I work out the problem _____(easy) the teacher helped me work out the physics problem