1." I'm very tired after doing three exams today" she said

⇒ She said ( that ) she was very tired after doing three exams that day

2."Could you tell us your name?"they asked

⇒ They asked if I could tell them my name 

3."Don't go out now or you'll be sorry," we ordered her.

⇒ We ordered her not to go out then or she would be sorry

4."I lost all my money last Saturday,"he said

⇒ He said ( that ) he had lost all his money the previous Saturday

5."Did Mary ask you about the party?" I asked

⇒ I asked is Mary had asked me about the party 

6."How much money do you need for that?"she asked

⇒ She asked How much money I needed for that

7."Who was the girl wearing that beautiful dress" he I ásked

⇒ He asked me Who the girl had been wearing that beautiful dress

1. she said that she was very tired after doing 3 exam that day .

2/ they asked me if I could tell them  my name

3. we ordered her not to go out then or I'd be sorry

4. he said that he had lost all his money the Saturday before

5. I asked me  if Mary had asked us about the party

6. she asked me how much I needed for that

7.  he asked me who the girl had been wearing that beautiful dress