Not only is talking to yourself out loud perfectly normal, it's actually beneficial in a variety of ways — as well as potentially being “a sign of high cognitive functioning,” according to Paloma Mari-Beffa, PhD, a neuropsychologist and cognitive psychologist who has researched the phenomenon of self-talk
C "The dog turned up..." means it showed up, was returned etc. Etc. The details of how the dog turned up are not important..what is..is that your dog is home.