单项选择题
A.It failed to arrive at its destination in time. B.It got seriously damaged on the way. C.It got lost at the airport in Paris. D.It was left behind in the hotel.
A.To irritate them. B.To teach them a lesson. C.To relieve her feelings. D.To show her courage.
A.The role of travel agents. B.The way people travel. C.The number of last-minute bookings. D.The prices of polar expeditions.