英语 九年级 选择题 简单 重点词汇与固定搭配 — 英语选择题 人教版·英语(初中) Unit 6 When was it invented? AI 三重审校通过 题目 Mia discovered that a paper fan could cool her tea ___ while she was testing it without planning to. A. by accident B. take place C. in public D. at once 登录后查看答案与解析 用此考点生成试卷 更多英语选择题