| A．Good morning. | B．Hello. |
| A．Hello. | B．I’m Liu Tao. |
| A．Hello. | B．Hi, I’m Su Hai. | C．Hello, I’m Su Hai. |
| A．Hello. | B．Good morning. |
| A．Good morning. | B．Good afternoon. | C．See you. |
| A．Afternoon | B．Morning | C．Hello |
( )| A．Good morning. | B．Good afternoon. |
( )| A．Hi. | B．Hello, Mike. |
| A．Good morning. | B．Good afternoon. |
| A．Hello, Su Hai. | B．Morning, Su Hai. | C．Good afternoon, Su Hai. |
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