【单选题】 People on foot can go across the road when ______.
A．
| [A] the traffic lights are green |
B．
| [B] they look to the right |
C．
| [C] the traffic lights are red |
网考网参考答案：C
网考网解析：
[解析] 由文中第一段可知答案。 查看试题解析出处>>
【单选题】 People on foot can go across the road when ______.
A．
| [A] the traffic lights are green |
| [B] they look to the right |
| [C] the traffic lights are red |
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