How do we separate variables from letters in shell scripting?

Question

I tried printing \"Dogs are the best.\" with this bash script.

#!/bin/bash

ANIMAL=\"Dog\"
echo \"$ANIMALs are the best.\"
exit 

However, I

Answer 1

Useless quotation, useless exit. A finished script needs no help to exit but the exit will bite you when sourcing that script.

ANIMAL=Dog
echo ${ANIMAL}s are the best.