Everyone 
done his or her homework.
Explanation:
Everyone is singular and, therefore, require singular verb.
Answer:
The class studied poems by these poets; Dickinson, Longfellow, Stevenson, and Poe.
Explanation:
A. They add a bit of humor to a serious mood. The fact that she asked them to bring her back a job is just funny, so it is definitely A.
Answer:
Children living in poverty experience the daily impacts that come easily to mind — hunger, illness, insecurity, instability — but they also are more likely to experience low academic achievement, obesity, behavioral problems and social and emotional development difficulties
