1. Good luck with your English exam/test!
2. I wish you all the best in your postgraduate entrance examination. May you achieve great success!
3. Good luck with your studies and the upcoming exam. You've got this!
4. As you prepare for your exam, remember that hard work and dedication will pay off. Good luck!
5. May your journey towards higher education be filled with success and fulfillment. Good luck with your考研!
希望这些表达能够帮助你向考研的同学或朋友传达你的祝福和鼓励。