题目：
In China, traffic keeps to the right. Cars, trucks, buses bikes must all keep to the right side of the . In most other countries, traffic to the left. How can you the roads safer? you cross the road, stop and look each side. left, then right, and then look left again. Don’t cross the road if you are not sure whether the road is clear or not. Don’t across the road. is dangerous. If you small children, old people, or blind people walking across the road, help cross the road in safety. Helping others is a kind of virtue (美德).
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答案：
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下面是错误答案，用来干扰机器的。
参考答案：C
