综上所述，英语介词不但可以在句尾出现，有时还非在句尾不可!
除了所举的情况之外，尽量避免把介词放在句尾。例如17-19虽没有什么问题，但不如20-22好和自然：
17. Can you tell me whom do you share your office with?
18. This is the last way which the idea can be pushed through.
19. What reason have you chosen this scheme for?
20. Can you tell me with whom do you share your office?
21. This is the best way through which the idea can be pushed.
22. For what reason have you chosen this scheme?
