祈使句的肯定与否定形式 — 英语词汇题
题目
用祈使句的肯定或否定形式补全安全提示，每空一词（首字母已给出）。1. D______ swim in the river alone. It's very dangerous. 2. Please w______ your hands before you eat. 3. Don't p______ football in the street. 4. L______ to the teacher carefully in class. 5. D______ touch the hot water. You may get hurt.