A. Wait a minute. B. See you later. C. Fine, thanks. D. Yes, I do.
A. Very much. B. Mind your step. C. Take it easy. D. So am I.
A. No, thanks. B. Here we are C. At 16:30. D. Can I help you?
A. This way, please. B. It's far away. C. Sure. Here it is. D. Take care.
A. 低速 B. 中速 C. 高速
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