| A．that is | B．it is | C．it isn’t |
| 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．Don’t sleep. | B．Don’t eat. | C．Don’t drink. |
| A．Close your books. | B．Don’t close your books. | C．Open your books. |
| A．there are | B．are there |
| A．a | B．an |
| A．a | B．two |
| A．\ | B．hundred |
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