| A. Good evening. B. Are you Liu Tao? C. This is John. He’s my friend. D. See you next time. E. This is me. F. Hello, Mike. |
| A．Hello. | B．Good morning. |
| A．Good morning, Helen. | B．Hi, Helen. Are your classes over? |
| C．Hi, Helen. See you next time. | D．Hi, the weather is not bad. |
| A．Good morning. | B．Good afternoon. |
| A．Hello, Bobby. | B．Hi, Sam. | C．Hi, I’m Bobby. |
| A．Good afternoon | B．Good morning | C．Good evening |
| A．Hello, I’m Sam. | B．Hello, I’m Bobby. | C．Hello, Bobby. |
| A．See you | B．Nice to meet you | C．Good evening |
| A．Hi, Bobby | B．Good evening, Bobby | C．Goodbye |
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