回答如下：1. Wishing you all the best in your English proficiency journey, my friend. Keep up the good work!

2. May your hard work and dedication pay off with flying colors in the upcoming CET-4 exam. Good luck!

3. Here's to your success in the English language, my dear friend. You can do it!

4. Sending you positive vibes and good luck wishes for your CET-4 exam. Believe in yourself and you will surely excel!

5. May your English skills soar to new heights and bring you success and happiness. Best wishes for your CET-4 exam!

6. Keep calm and ace that CET-4 exam, my friend. You have the knowledge and skills to do great!

7. The CET-4 exam may be tough, but so are you, my dear friend. Believe in yourself and conquer it with ease!

8. May your CET-4 exam be filled with joy, confidence, and success. You got this!

9. Your hard work and determination will pay off in the CET-4 exam. Best of luck, my friend!

10. Your dedication to English proficiency is admirable, my friend. Keep shining and acing those exams!