When was it invented? Unit 9 the first period 【最新】九年级英语 Unit9第一课 时 1课件 人教新目标版 课件 light bulb invention Edison inventor Edison invented the light bulb. The light bulb was invented by Edison. 【最新】九年级英语 Unit9第一课 时 1课件 人教新目标版 课件 Karl Benz invented the car. _ was invented by _.The car Karl Benz 【最新】九年级英语 Unit9第一课 时 1课件 人教新目标版 课件 Bell invented the telephone. _ was invented by _.The telephone Bell 【最新】九年级英语 Unit9第一课 时 1课件 人教新目标版 课件 Listening (1b: P68) 1876 1885 1927 1971 1976 【最新】九年级英语 Unit9第一课 时 1课件 人教