问题描述：
单选(1068):-Good morning ,Room Reservations.May I help you ,sir?
-Good morning ,Room Reservations.May I help you ,sir?
-Yes,I'd like to book a room.
-____.Which date would that be?
A.Thank you ,sir
B.That's all right,sir
C.You're welcome.sir
D.No trouble,sir
-Good morning ,Room Reservations.May I help you ,sir?
-Yes,I'd like to book a room.
-____.Which date would that be?
A.Thank you ,sir
B.That's all right,sir
C.You're welcome.sir
D.No trouble,sir
问题解答：
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