| A．Don’t talk. | B．Don’t shout. |
| A．I’m sorry. | B．Thank you. | C．Sorry, you are wrong. |
| A．Stand up. | B．Sit down. | C．Good morning, Mr Green. |
| A．Don’t close the windows. | B．Don’t close the door. | C．Don’t open the windows. |
| A．Don’t run here. | B．Don’t shout here. |
| A．Come in, please. | B．I’m sorry. |
| A．Don't sleep here. | B．Don't open. |
| A．Stand up | B．Sit down | C．Yes, please. |
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