祈使句表达安全规则：Don't... / Be careful — 英语填空题
题目
体育课上，老师用祈使句提醒大家注意安全。请根据情境，用 Don't 或 Be 补全句子（每空一词，注意首字母大写）。(1) The floor is wet. ___ careful! (2) ___ run in the classroom. (3) ___ play ball games near the window. (4) ___ careful when you jump. 按题号顺序填写：