1 . 听下面一段较长对话，回答以下小题。
1. Who are the speakers probably?
2. Why did the man failed to pay?
1. Who are the speakers probably?
| A．Brother and sister. |
| B．Repairman and customer. |
| C．Restaurant owner and delivery man. |
| A．There wasn’t enough money in his card. |
| B．He hasn’t created a payment method. |
| C．The application broke down. |
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