| A．How are you? | B．Hi |
| A．What’s your name? | B．I’m Lingling. |
| A．Hello, Daming. | B．Goodbye, Daming. |
| A．Bye-bye, Amy. | B．Hi , Amy . |
| A．How are you? | B．I’m fine, thank you. |
| A．Hi, I’m Sam. | B．Bye-bye, I’m Sam. |
| A．Goodbye. |
| B．Good afternoon! |
| C．Hello, Maomao. |
| D．I'm fine, thank you. |
| E．I'm fine, too. |
| A．Hi, Lingling. | B．Goodbye, Lingling. |
| A．How are you? | B．Fine, thank you. |
| A．Good afternoon. | B．I'm Lingling. |
| A．Good afternoon! | B．Byebye! |
| A．Good morning, Ms Smart. | B．Thank you. |
| A．I’m Daming . | B．Thank you . | C．Goodbye . |
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