( )| A．Are you nurse? | B．Are you soldiers? |
| C．Are you drivers? | D．Are you teachers? |
means: ______ ( )| A．Don’t cross the street. | B．Don’t turn right. | C．Don’t turn left. | D．Don’t go straight. |
| A．Come back and let’s be friends. |
| B．Come up and let’s be friends. |
| C．Come down and let’s be friends. |
| D．Come on and let’s be friends. |
| A．The train is up the hill. |
| B．The train is down the hill. |
| C．The train turns left. |
| D．The train turns right. |
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