Answer:
You didn't put the phrases, but maybe i can give you some example, and you can try to figure it out?
Busy as a Bee
Dead as a Doornail
Get your Goat
Give up the Ghost
Good as Gold
Home sweet Home
Last laugh
Leave in the Lurch
Starts and ends with the same letter
Hope this helped!
Have a supercalifragilisticexpialidocious day!