公共场所与行为规范 — 英语选择题

社区中心贴着两张提示：图书馆里要保持安静；医院走廊里不要跑。哪两句话符合提示？A. We should be quiet in the library. Don't runs in the hospital. B. We should talk loudly in the library. Don't run in the hospital. C. We should be quiet in the library. Don't run in the hospital. D. We should run in the library. Don't walk in the hospital.