very few students can work out the problem.the teacher had t

very few students can work out the problem.the teacher had t “Can she work out the difficult problem?”the teacher said. ( 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.He can't work it out.(合并为一句） THE problem is very diffcult.he can't work it out .（合并） the problem is very difficult.we can't work it out.(合并一个句）th The problem is very difficult.We can't work it out.(51.合并） the problem is very difficult ,You can't work it out------ - The problem is very easy.A_____ can work it out. He can work out the problem a( 19.The students didn’t manage to work out the problem ______