Answer:
Marta: Me corté el dedo.
Alicia: ¡Ay! Ten cuidado con los cuchillos y ponte una curita.
Step-by-step explanation:
In this exercise, you have to complete the conversation by understanding the context of the sentence. This is a vocabulary activity. The answer is ''me corté el dedo'' because Alicia talks about being careful with knives and using a band aid. Cutting your finger with a knife is not that unusual when you cook and using a band aid is useful when you cut your finger, so the sentence fits the context.