Question

change these sentences into indirect speech.
a) he said 'I was late yesterday"
b) have you written your exams well?

Answer 1

b) He asked that I had wrote my exams well.

Answer 2

a )  He said that  he was late  yesterday.
       He said that  Yesterday he was late.

b)   I am asked if I have written my exams well.
         I am inquired whether I have written my exams well.

   We may also assume  the sentence in direct speech to be:     
                  He (she or they) asked,  " Have you written your exams well " ? 
  Indirect speech -    He (she or they) asked me if I have written my exams well.