| A．Is this your ruler? | B．Are these your rulers? |
| A．How much is it? | B．How much are they? | C．How many apples? |
| A．Good morning. | B．Good afternoon. |
| A．Thank you. | B．Sorry, I’m late. |
| A．Open the door, please. | B．Close the door, please. |
| A．Yes. | B．Thank you. |
| A．Good morning. | B．Good afternoon. |
| A．in | B．for | C．at |
| A．Close | B．Open | C．Clean |
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