英语 九年级 选择题 标准

一般过去时被动语态 — 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
The mobile phone ______ (invent) in 1973, and since then it ______ (change) people's lives greatly. Which choice correctly completes the sentence? A. was invented; has changed B. invented; changed C. was invented; changed D. is invented; has changed