Exercise 4: Tìm danh từ chỉ sự vật, sự việc cho các từ sau: 1. famous .......................... 10. strong ............................. 2. interesting .......................... 11. manage ............................. 3. educate .......................... 12. varry .............................. 4. long .......................... 13. decide ............................... 5. happy .......................... 14. admire ................................ 6. develop .......................... 15. collect ............................... 7. joy .......................... 16. attract ................................ 8. prepare .......................... 17. teach ............................... 9. beautiful .......................... 18. friend ................................