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

Just surround the variable's name with curly braces.

#!/bin/bash

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