Sure, let's complete the exchanges with the correct reflexive pronoun:
A: Does your mum cook breakfast on Sunday? B: No, she doesn’t. My dad and I do it ourselves.
A: And did your brother and you go fishing with your dad on summer holidays? B: Yes, we did. We sometimes did it by ourselves.
A: Don’t help Paul with his project. He can do it himself. B: Yes, he can. Can you make yours by yourself?
A: What’s wrong? Why is Mary crying? B: She’s just cut herself in the kitchen. The knife that she used was very sharp.
A: Alice, the pancakes are so tasty! You excelled yourself.
B: Thank you! They are really delicious. A: Why are all the students silent at the moment? B: The teacher told them to read the text to themselves.