The scientists finally solved this problem after many years

The scientists finally solved this problem after many years They finally thought ______ a plan and solved the problem. This is the way ___ he solved the diffcult problem. This is( )they solved the problem in hte cityAthatBhowCwhen David finally solved that problem with the help of his fathe 这句话准确的意思是?Finally I want you to know that after this problem They have had the problem solved. they have had the problem solved with the problem has solved可以吗 同义句转换：I finally succeeded as a writer after so many years of After many years of hard work,his dream has finally＿. After many years of hard work ,we have finally made some pro