Answer:
Every time they are dirty.
Explanation:
If you don't change the towels out for the sandwich station every time they get dirty, it can lead to some food born illnesses that you can potentially give customers. If a customer gets a FBI, you can lose a customer, or get sued. It is always best to change them every time they are visibly dirty to prevent accidents like FBIs from happening.
Is this a book or no cause you made it sound very confusing
Answer:
A run-on sentence is made up of two or more independent clauses that are not joined correctly or which should be made into separate sentences. A comma splice is the incorrect use of a comma to join two independent clauses.
Explanation: