祈使句表示禁止与建议 — 英语填空题
题目
学校实验室里，老师写在黑板上的安全提示有三条，请根据句意用所给内容补全祈使句（每空一词）。① You can't run in the lab. → 1.___ run in the lab. ② You should put on your safety glasses. → 2.___ on your safety glasses, please. ③ Don't touch anything if you are not sure. → If you are not sure, don't 3.___ anything. 三句都体现祈使句表示禁止或建议，请按顺序填出空缺单词。