题文
---___________?
---Yes, please.
| A．How are you? | B．Can I help you? |
| C．What can you do for me? | D．What do you want? |
---___________?
---Yes, please.
| A．How are you? | B．Can I help you? |
| C．What can you do for me? | D．What do you want? |
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