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题目内容
（广东开放大学大英B（本22秋））
If you have any problems during a trip，you should ______.
选择一项：
A. ask for a refund
B. change your itinerary
C. call the booking office
D. return the ticket to the office
选择一项：
A. ask for a refund
B. change your itinerary
C. call the booking office
D. return the ticket to the office
参考答案