I agree with the selective roommate system; Dormitory rooms shared by 2 students

Here is my own essay on this topic:
note that texts in brackets,like [intro], are only for didactic purpose on how long and structured should the essay be, and are for sure are not included on the test day!

[Intro] I agree with the selective roommate system by university and strongly believe that dormitory ambiance is as much important as the major and the rank of university we are studying at. As much as an incongruous roommate can negatively affect dormitory living experience, it could have significant adverse impact on the academic experience.

[Body #1]Coherency among roommates plays an important role in dormitory life,as such the less the variance among roommates, the more joyful and stress-free the university life will be.Consider one tough day in university and you just want to get some rest at your room, but when you arrive there, you face with the room packed with musician university students playing loudly and making it impossible for you to have some rest.Therefore roommates with the same major and being at the same level,say both sophomores or juniors, can give positive feedback on each other both on academic life and quotidian life.In my opinion the odds are low that an electrical engineer can get a long readily with a musician.

[Body #2] When there is a choice for selecting your own roommate it helps to bolster your distinguishing capability on people which also works when selecting your life partner.considering your own faults and flaws and select another roommate considering their own faults and flaws can improve partner selection ability not only in university life but in real life.university students are getting ready to enter society, but when this entrance is only packed with academic experience and not a bit of real life experience, there is probability that this lack of pragmatic experience lead to job opportunities deterioration.

[Body #3]For even better choice over roommates, university could step forward and build databases based on applicants traits and make it easier and help students choose their own roommates better, and even make it more systematic by providing default but flexible roommate agreements. For example beforehand the terms begin, make it mandatory to fill some forms about their personal traits and criteria they expect their roommates to have, like the matchmaking websites; in this case the possibilities of miscongruity amongst roommates decreases drastically.

[Conclusion] As I described, it is necessary to provide selecting choice of roommates for university students for that it could help burgeon social skills of students along with their academic skills and provide students with friendly atmosphere which is necessary for having joyful academic experience.

Well, I am not in favor of opening your essay with expressing your opinion. Your reader is yet to know what you are going to write about.

-don't repeat the words.Try to use synonym
2.give 2 reasons for support with examples

Well, the first thing the reader sees is your layout, which shows whole of your essay. If the layout is difficult to read, which is let's say: no spaces between paragraphs, then he/she immediately knows your writing needs more work to read. Hence, I suggest you to leave one space every time you open a new paragraph.

Well, if you have a question that you don't like at all, then you can write with a 5-paragraph essay. You write one introduction, three bodies, and one conclusion. This can help you write more words, but some students, that I see, put grandiose ideas, by writing too many words.

Look at what Dumi suggests you with the structure (a 4-paragraph essay). With this structure, you are easy to develop your paragraph properly. Also, this is good for coherence and cohesion between the sentence-to-paragraph-to-essay construction, and for which in the five-paragraph structure this is weak.