| A．Yes | B．I’m sorry. | C．No |
| A．不是 2. your pen | B．这块橡皮 3. this rubber | C．我的书 4. that pencil case | D．你的钢笔 5. isn’t | E．那个铅笔盒 |
| A．Open the door | B．Close the window | C．Open the window |
| A．I’m sorry, Mr Green. | B．Come in, please. | C．Thank you. |
| A．Thank you. | B．Yes, it is. | C．Yes, please. |
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