选词填空：swipe station into deposit newly acceptedWhen the AFC (Automatic Fare Collection)system goes_____ effect, only two kinds of tickets will be _______ for transportation on the Beijing's subway lines: the _____ single-journey tickets and YIKATONG that is already in use.Those using the YIKATONG must ____ their cards again when exiting the subway station. Customers using the single-journey card must ____ their cards at the ticketing checking machines at the exit. Only after the cards are accepted by the machine can the traveler leave the ____.