were invented 考点为被动语态对吗?

were invented 考点为被动语态对吗? 被动语态考点清单 用主动语态或被动语态改写下列句子 Electric silppers were invented by Julie Th who invented tea?改为被动语态 Who invented it? 改成被动语态~ 被动语态和过去完成时The computer was invented in 1800可以转换为The computer who invented it是被动语态还是主动语态 Bell invented the telephone in 1876(变为被动语态) Sandy invented the bike.（改为被动语态） Who invented the first television?(改成被动语态） Thomas Edison invented the light bulbs 怎样改成被动语态 Who invented the first teievision?(改为被动语态)