who invented it是被动语态还是主动语态如果是被动语态,那为什么不要加was呢,

Who invented it? 改成被动语态~ who invented it是被动语态还是主动语态如果是被动语态,那为什么不要加was呢, who invented tea?改为被动语态 who invented the bicycle?怎么改为被动语态? Who invented the computer?句子改为被动语态 Who invented the alarm clock 改为被动语态 Who invented the first teievision?(改为被动语态) 这句话是被动语态?Do you know who is considered to have invented the first TV set? Who invented the first television?（改为被动语态）___ ___ was the first television ___? 被动语态 “who will do it ” 怎么变被动? Who invented the first television?(改成被动语态）—— —— was the first television ——? Bell invented the telephone in 1876(变为被动语态) Thomas Edison invented the light bulbs 怎样改成被动语态 jame's naismith invented basketball(改成被动语态) 请将此句转换成三个被动语态的句子Do you know who invented the radio?再写出与此相同的四个例句,并且也将此转换成三个被动语态的句子 这是我的变态英语作业 Do you want to know whom invented the television?改为被动语态 DO you want to know who thetelevision （）（）（）? 句型转换：who invented the first television(改为被动语态)请英语好的帮帮忙啊格式应为：__ __was the first television__? it is you who have invented it.it is you who has invented it 请问这种情况是have对还是has对?