Передайте последующие властные предложения в косвенной речи А)39;39;Explain to me how

А) "Explain to me how to solve this problem", said my friend to me. - My friend asked me to explain to him how to solve that problem.
Б) The doctor said to Pete: "Dont go for a walk today". - The doctor told Peter not to go for a walk that day.
B) Peter said to them: "Dont leave the room until I come back". - Peter told them not to leave the room until he came back.
Г) Jane said to us: "Please tell me all you know about it". - Jane told us to tell her all we knew about it.