Pls check it.
Direct:"Please post these letters when you go out,"he said.
Reported: He said to post these letters when i went out.
Direct:She said to the boy,"I will give you a chocolate if you keep quiet".
Reported: She told the boy that she would give him a chocolate if he keep quiet.
Direct: "Ring me up a soon as she arrives," he said.
Reported: He said to rong him up as soon as she arrived.