original: Months pass, and Tod and Copper reach adulthood.
simplifications: Time passes, Tod and Copper reach adulthood. In months, Tod and Cooper were adults. Tod and Copper become adults after a while. Tod and Copper become adults. Months pass. Tod and Copper become adults. After a few months, Tod and Copper grow up. Months pass, and Tod and Copper grow up. Months pass. Tod and Copper become adults. Months go by, and Tod and Copper grow up. Months go by, and Tod and Copper reach adulthood.