A、For 30 minutes only. B、For one hour only. C、Within the booked time only. D、Longer than the booked time. D对话中女士说可以预约的时间是半小时至一小时

W: As a member, you don’ t have to register when you arrive. But you must remember to register your guests. And you must be able to produce your membership card if a club official asks to see it.
M: Hum, that’ s good. How many guests can I bring with me?
Q: What are the members of the club required to do?

M: And can we play an hour at a time?
W: You can book the courts for thirty minutes or an hour. But you can carry on play until the next players arrive.
Q: According to the club’ s rules, how long can members play tennis?