请帮我排一下KET 15次课程

以下是一种可能的排列方式：

1. Unit 1: Greetings and Introductions
2. Unit 2: Numbers and Colors
3. Unit 3: Family and Friends
4. Unit 4: Food and Drinks
5. Unit 5: Daily Routine
6. Unit 6: Free Time Activities
7. Unit 7: School Life
8. Unit 8: Jobs and Occupations
9. Unit 9: Places and Directions
10. Unit 10: Holidays and Celebrations
11. Unit 11: Weather and Seasons
12. Unit 12: Travel and Transportation
13. Unit 13: Health and Fitness
14. Unit 14: Shopping and Money
15. Unit 15: Review and Assessment