题目10单选题
I' m going to take Flight MU 523 to Tokyo. What should I do firstA. Please go the ticket counter No. 3 for ticket endorsementB. Please go to the airline ticket counter for itinerary receipt printingC. You can choose your seat and print your boarding pass at the kiosk, and go to the airline counter to check in your baggageD. You should go to the airline counter and go through check-in procedure first