Answer:
Vaccinations are not always effective.
Explanation:
trust me
‘Control’ should go in the blank spot.
Discharged in this sentence means to perform a throwing action over the heads of the people.
Your muscles. Some muscles are “voluntary.” They
are the ones you control, the ones that let you exercise—or
relax. Some muscles are “involuntary.” They just do their
job with no effort on your part—like your heart muscles.
The stomach lining replaces mucus itself every few days