Final answer:
David's arrival changed Promo's life by bringing new experiences and opportunities, as well as providing emotional support and companionship.
Step-by-step explanation:
David's arrival changed Promo's life in several ways. For example, with David's arrival, Promo may have gained a new friend and companion. David's presence may have also brought new experiences and opportunities into Promo's life, such as introducing Promo to new hobbies, interests, or social circles. Furthermore, David's arrival may have had a positive impact on Promo's emotional well-being, providing support and companionship.