英语 八年级 选择题 简单 must/mustn't/have to表示义务与禁止 — 英语选择题 外研社版(主编:孙有中)·英语 Unit 5 Play by the rules? AI 三重审校通过 题目 根据句意选择正确答案。In the school library, you ______ keep quiet, and you ______ talk loudly or eat snacks. A. must; mustn't B. mustn't; must C. have to; have to D. mustn't; mustn't 登录后查看答案与解析 用此考点生成试卷 本单元全部练习题 更多英语选择题