Most living things that have ever been on Earth are now extinct. We know about them from fossils. A fossil is the remains of an ancient living thing that has been preserved in the Earth’s crust. Most things that die will not become fossils. It takes a lot of special conditions for them to form. According to the passage, most things that ever lived are
A fossils.
B extinct.
C animals.
D still alive.

Read the rough draft of a student's conclusion to anargumentative editorial.(1) year-round schooling would student achievement.(2) not so much information would have to be crammed intonine months. (3) furthermore, the elimination of long breaks, particularly summer break, would significantly reduce"learning loss" and the additional time wasted at thebeginning of each academic year to reteach previouslylearned material. (4) it is clear that year-round schooling students learn and retain more. (5) the united staleis not the only country to experiment with a year-roundschool schedule. (6) although many still claim that evidenceabout year-round school and its link to higher achievement isinconclusive, these people need to open their eyes and seethat students in these schools consistently score higher oncertain assessments than students who attend schools withtraditional nine-month calendars. (7) it is about time that wereplaced our outdated and inefficient school calendars. which best revises sentence 6 to create a more appropriate and respectful tone