使用must/mustn't表达义务与禁止 — 英语选择题
题目
家里有三条规则：晚饭前要洗手，不能碰热炉子，自己的房间要保持整洁。选择能正确表达这三条规则的选项。You ___ wash your hands before dinner. You ___ touch the hot stove. You ___ keep your room clean. A. must, must, mustn't B. mustn't, mustn't, must C. must, mustn't, must D. mustn't, must, mustn't