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Unit 4 Flying In and Out,Part I Getting ready,B e f a d bC,Part Airport announcements,A,B,A.1.business trip 2.rates,21-day,30-day3.preference4.reservation5.cash,credit6.passport7.checked 8.claim,ticket,Part III A trip to the States,B,Part More about the topic:In-flightService,Part Memory test:Airline Information,
