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14. How come you are not wearing a red uniform today？
15. I have to make a decision by 10:30.
16. How often do you play tennis？
17. Do you mind if I give you some advice on that？
18. It is a very important tip on how to use the court.
19. You are much better than me 작성자 주일성수 작성시간 10.09.27