The words fee, salary, fare, and price are related to money. However, all of these have slightly different meanings and are used in different contexts. In the case of the word price, this refers to the money someone pays for a product. This makes this word appropriate to complete the sentence "Thomas bought that pen at a low..." because this is related to buying a product. On the other hand, the word fee is usually used to refer to the money paid for services, the word fare is used in transportation contexts and salary is used to refer to the money someone receives for their work.
Using the first person point of view tells the story for the perspective of someone who is experiencing everything. It uses words like "I" and "me." It shows what they're feeling, saying, and thinking
