Could you tell me how to pay for the food by QR code（二维码）on the phone？
．（ ）
A．Take it easyB．It doesn't matter
C．You're welcomeD．Sure． I'd love to
Could you tell me how to pay for the food by QR code（二维码）on the phone？
．（ ）
A．Take it easyB．It doesn't matter
C．You're welcomeD．Sure． I'd love to
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