=>
1. B : nhưng
2. A : bởi vì
3. B because
4. B and
5. C How
6. B like Ving
7. C : nhưng
8. B Because
9. A How much
10. A classroom
11. B remote
12. A You're welcome
13. C How often
14. B held
15. D achievements
17. B well-known
18. A competition
19. A part
20. B on
21. A : thư giãn
22. D How many
23. B for