1. which sentence is written in active voice?
a) the students had been held longer by the monitor in study hall.
b) the teachers allow extra credit opportunities to all their students.
c) some students are given trouble by the reading passages that are longest.
d) the progress reports are to be signed by the students' parents.

i believe she will have 25 quarters.

step-by-step explanation:

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; exploratory;

stable food supply,social structure, government,religion,culture/art,technology and writing/language;