Don't eat in class —— run in the hallways! 填and 还是 or 求解

Don't eat in class —— run in the hallways! 填and 还是 or 求解
Don't eat in class —— run in the hallways! 填and 还是 or 求解

Don't eat in class —— run in the hallways! 填and 还是 or 求解
Don't eat in class or run in the hallways!选择关系
Don't eat in class and don't run in the hallways!并列关系