祈使句表示安全提示 — 英语选择题
题目
路口的安全提示要表达“绿灯亮前不要过马路”，应选哪句？A. Don't cross the road before the light turns green. B. Cross the road before the light turns green. C. Don't cross the road after the light turns green. D. Cross the road when the light turns red.