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.
Answer:
A
Explanation: the other three are either irrelevant or have already been answered in the text.
C.flock canada is a pronoun, so not b. loudly is some type of verb so not d. and barn isn't collective.
Well floating in the pool, Sarah saw a bee trying to dry its wings.
