国际旅客运输往往是来回程，在目的地城市停留时间相对较长。因此乘坐国际航班的旅客往往需要办理座位再证实手续。
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What are the two speakers talking about?
A birthday party.
B. A trip to the country.
C. Plans for the whole week.
D. Plans for the weekend.
Will the man attend the birthday party?
A. Yes, he will, because he is free that day.
B. Yes, he will, because he likes dancing.
C. No, he won't, because he has planned a trip to the mountains.
D. No, he won't, because it's too faraway.
What will the speakers do on Sunday?
Attend a party and swim.
B. Attend a party and dance.
C. Go for a walk in town and swim in a swimming pool.
D. Go for a walk in the mountains and swim in a river.
How will they get to the mountains?
A. By bus.
By bicycle.
C. By car.
D. By train.
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