交通设施和安全词汇 — 英语填空题
题目
根据句意和中文提示,补全句子(每空填入正确的交通设施词汇,可是一个词或两个词):
1. When the ___ (红绿灯) turns red, we must stop and wait.
2. Don't run. Please walk on the ___ (斑马线).
3. The ___ (停车标志) tells cars to stop.
4. A ___ (人行横道) helps us cross the road safely.