( )| A．I open my book | B．I close my book. |
( )| A．Sit down, please. | B．Stand up, please. |
( )| A．I close the door. | B．I open the door. |
( )| A．It's on the desk. | B．It's in the desk. | C．It's under the desk. |
| A．he | B．she | C．you |
| A．friend | B．friends | C．teacher |
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