As an AI language model, I cannot directly answer what Luke did while writing his paper as there is no context provided. Please provide more information for me to give an accurate answer.
Unfortunately, since you have not provided any options for me to choose from, I cannot determine which of the following actions Luke did while writing his paper. Could you please provide me with the options so that I can help you further?
To determine what Luke did while writing his paper, we need more context or options to choose from. Please provide a list of actions or activities for Luke, and I'll help you identify which one he did while writing his paper.
