My first letter is in "fat".not in "hat",mysecond letter is in "dad",not in bed",my third letter is

问题描述:

My first letter is in "fat".not in "hat",mysecond letter is in "dad",not in bed",my third letter is

My first letter is in "fat".not in "hat",my second letter is in "dad",not in bed",
my third letter is in "pie",not in "pig".