| A．Close the door, mum. | B．Open the door, dad. | C．Open the door, mum. |
| A．Stand up, please. | B．Open your books. | C．Sit down, please. |
| A．Is that a teacher? | B．Is this a teacher? | C．Who’s she? |
| A．The lunch box is under the chair. | B．Is the lunch box under the chair? |
| C．Is the lunch box on the chair? |
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