Question

He said what a lazy boy you are how badly you have done your work change into indirect speech

Answer 1

he said that he was a lazy boy and he had badly done his work

Answer 2

Question you asked

He said, "what a lazy boy you are! How badly you have done your work!".

                                           Answer to your question                                                      

He said, that I was a lazy boy and that I have done my work badly.