I oppose cheating.

Recently, I finished my writing exam. I foundmy classmates were cheating in the exam. After the exam finished, my friends told me that many people cheated in exams because they were too lazy to think deeply. They used phones to find out some good sentences, and sometimes they found the answers on the Internet. Most of the time, they won't be caught. Finally, they may get a good grade, or even obtain a scholarship. I hate this kind of behavior. It's so unfair, and it could make somebody who worked hard lose their scholarship.
More exams are coming, I hope the number of cheaters will decrease! I will try my best to prepare for the exams, I don't want to lose to people who will cheat!

A good try. Please take care with past tense!! With "graceful", "good" might be better. We don't really use "graceful" to mean words or sentences. We use it for people and actions- such as a "graceful dancer". It's often better to use simple words. Good luck with your test!

I'm against cheating.

Recently, I finished my written exam. I then found out that  my classmates was cheating in the exam. After the exam was over, my friends told me that many people cheat in exams as they are too lazy to think for themselves. They use their phones to find out some eloquent ways to say things , sometimes they can even find the answers to the exam on the Internet. Most of time, they won't be caught. Then, they get a good grade, even get a scholarship. I hate that kind of behavior. It's so unfair and might make somebody who works hard lose their scholarship.
Some exams are coming up again, I hope there won't be as many cheaters ! I will try my best to prepare, I don't want to lost to people who cheat!