The way___he worked out the problem is not the way___I told

The way___he worked out the problem is not the way___I told --Have you worked out the problem?--Not yet,but I___. The problem is difficult,（ ）he has worked it out. He worked out the math problem f__. I worked out the problem so( )(easy) They worked out the math problem . This is the best way___i have thought of___the problem.A.不填； This is the way___the teacher worked out the problem. A.whic I don't understand the way_____they worked out the problem. ----Have you worked out the problem,Sam ----Not yet ,but I__ She was worked out the difficult problem ___ clever she is The problem is difficult,____,he has worked it out.A:though