What troubled you in Charlie's letters?
from the book "the perks of being a wallflower"

After being hospitalized for the summer after his best friend try to kill her self Charlie who suffers from Post Traumatic Stress Disorder (PTSD), is about to embark on his first year of high school.

Explanation:

How his aunt helen touched him when he was a kid

Explanation:

the cost of attendance or coa is an approximate budget for the cost of attendance of the whole academic year. in order to calculate this, universities take into consideration many factors like room and board, tuitions and fees, books, transportation and personal expenses such as medicine, laundry, clothing. all these factors combined make up the final sum to the cost of attendance in each university.

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)