Reported Speech

Hello, how would you transform the following questions into the reported speech?
"This isn't the first time she has made this mistake, ist it?" he said.
"What a wonderful present!" she said.
"Well done! That was a wonderful performance", he said.
"The curry we ate at the restaurant made us ill, didn't it?", he said."it certainly did", she replied.
"Slow down or I'll get out of the car" she said.
"But you MUST let me help you", he said.
"You ought to try harder" he said.
"Give us the money or we'll reveal your secret" they said.

Thank you in advance.