Read the rule of indirect speech paying attention to the words in bald.

Helen: "I live in London."
Helen said she lived in London.

Kathy: "I can't swim."
Kathy said she couldn't swim.

Bob: "Will you help me to solve that problem?"
Bob asked if I would help her to solve that problem.

Mary: "Where did they go yesterday?"
Mary wanted to know where they had gone the day before.

Jane: "Don't open the window, Mary. It's too cold here."
Jane told Mary not to open the window.

Dora: "Look at the rainbow, John!"
Dora asked John to look at the rainbow.