<u>Answer:</u>
Eradicating smallpox was successful because of many reasons.
<u>Explanation:</u>
Smallpox was regularly found in an area or we can say it was prevalent in some places. So, mortality rates were high. It was caused by variola virus and affected mainly humans. So, it was essential that such vaccine is developed which can successfully immune people from this disease.
Smallpox vaccine then started spreading across "Europe and North America" and then gradually it spread all over the world and successfully eradicated smallpox by 1980. Other diseases that have been controlled by vaccines are “diphtheria, bacterial influenza, measles, mumps, rubella, and tetanus”.
Answer:
C.
Explanation: Because Ducks and geese flew south for the winter. ducks and geese is the compound subject.
C. Carl had asked his mothers permission before he left town, this is the correct one because the keyword is "Had" and "before"
#1
Dear Katty,
Thanks for buying me chocolate this afternoon. It was absolutely delicious! I hope you have a nice day!
Sincerely,
(Your Name).
#2
Dear (friend),
You are invited to my birthday party! It will be held on June 17th, at 5pm, eastern time. We will have delicious food, like pizza, and cookies! If you'd like to come, RSVP by texting my number!
Make sure to come with a gift for me! This party is for my 13th birthday. Hope everyone comes!
Sincerely,
(Your Name).
#3
Dear Grandma,
Thanks for the sweater you knitted me for Christmas! It looks fabulous with the hat Mom got me. I hope you enjoyed my gift, too! We hope to see you soon!
Sincerely,
(Your Name).
