( )| A．Some children in Jiangxi go to school by ferry. |
| B．In Alaska, it snows a lot. Some kids go to school by sled. |
( )| A．Look right before you cross the road. |
| B．Turn right at the traffic lights. |
| C．Look left before you cross the road. |
( )| A．Children go to school by ferry. |
| B．Children go to school by sled. |
| C．Children go to school by bus. |
( )| A．Let’s go by ferry. |
| B．Let’s take a doubledecker! |
| C．Let’s go by subway. |
( )| A．on foot | B．by bike |
( )| A．look right | B．look left |
( )| A．The light is red now. Let's go! |
| B．The light is red now. We can't go! |
( )| A．You must stop and wait at the red light. |
| B．You must look right before crossing the road. |
( )| A．People must wear a hat in the USA. |
| B．People on bikes must wear a helmet in the USA. |
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