Final answer:
The question relates to vocabulary or sentence completion in English. The text requires filling in the blanks with appropriate business-related words, but due to lack of context, any completion remains speculative. Vocabulary enhancement is key in English proficiency.
Step-by-step explanation:
The question posed appears to involve the business dealings of a character named Franklin, who is 25 years old and engaged in the commercial activity related to space. However, without context or additional information, it is not possible to accurately provide a one-word completion to the blanks in the sentence "25 yr old Franklin (sells/rents/buys) ____ space to his ___ who sells "___," a "___, for ____."
Nevertheless, one might infer that the essence of the question pertains to vocabulary or sentence completion, common in English language proficiency practice. Therefore, assuming the blanks require nouns and verbs that make sense in a business context, one possible completion could be: "25 yr old Franklin rents space to his associate who sells merchandise, a product, for profit."
Without more specification, any answer remains conjecture. Enhancement of vocabulary, comprehension, and sentence structure are integral aspects of mastering the English language, particularly at the college level.