We have been waiting for an hour
Explanation: CDC works 24/7 to protect America from health, safety and security threats, both foreign and in the U.S. Whether diseases start at home or abroad, are chronic or acute, curable or preventable, human error or deliberate attack, CDC fights disease and supports communities and citizens to do the same.
Answer:
a) we are followed by them.
b) is the breakfast being made by him for us?
c) write full question I will tell you in comments.
I would say the most recent definition