Final answer:
To enhance the argument for pothole repairs, the paragraph should include more details on the negative impact on the community, such as costs of car repairs and potential accidents.
Step-by-step explanation:
To make the writer’s argument more effective in the opening paragraph arguing for pothole repairs, one could add the effects of the problem. While the paragraph describes the creation of potholes and mentions the occurrence of two flat tires and a traffic snarl due to a large pothole, it could be strengthened by further detailing the negative impact on the community. Including information about the costs of car repairs, the potential for accidents, the inconvenience to drivers, and even the impact on local businesses could provide a compelling argument for why the potholes should be addressed promptly.