Jesus forgot his math book. / Jesus was unable to do his homework. (so)
Jesus forgot his math book, so he was unable to do his homework.
Keaton was hungry. / Keaton skipped breakfast. (since)
He was hungry since he skipped breakfast.
Aliyana's mom's car had a flat tire. / Her mom called a tow truck. (due to)
Aliyana's mom called a tow truck due to her car's flat tire.