| A．I am Mary. | B．This is Mary. |
| A．Hi, Mum. Good afternoon. | B．This is Wu Binbin. |
| A．this is, that is | B．this is, this is |
| A．Mum, this is Tom friend. |
| B．Mum, this is my friend Tom. |
| C．Tom, this is my friend Mum. |
| A．Hello, I’m Helen. | B．Hello, Helen. | C．Goodbye, Helen. |
| A．My name is Jim. | B．I’m Jim. | C．This is Jim. |
| A．Good morning, Mike! | B．Nice to meet you, Miss White! | C．I’m Mr Jones. |
| A．Great | B．Goodbye | C．Nice to meet you |
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