Machine tools are produced in this factory这个被动语态句子中为什么用in而不用

Machine tools are produced in this factory这个被动语态句子中为什么用in而不用 this factory produces machine tools 把下列句子变成被动语态:How many cars did the workers in this factory ma The workers make bikes in this factory.改为被动语态 一道英语从句题Is it in this factory ____ "Audi" cars are produced?A is this in that factory （）"Red flag" cars are produced. 主动句与被动句C.主动句转被动句1 This factory produces machine tools.2 They Is it in that factory "Red Flag" cars are produced? they do not make this kind of watches in Beijing.把这个句子改成被动语态 They made this kind of TV set in their factory.（变为被动语态） 改写被动语态句子1.They make machines in that factory .2.Every body l 把下列句子改写成被动语态：They make maching in that factory