安全词汇：safe, dangerous, careful — 英语选择题
题目
Read and choose. 小明在十字路口看到红灯还剩三秒，他奔跑着冲过马路，差点被拐弯的自行车撞到。下面哪句话提醒最恰当？A. It's safe to run across the road when the light is red. B. Be careful! It's dangerous to run across the road. C. Running in the street is safe and interesting. D. The light is red, so it's safe to run.