Peole use metal for making machines .改成被动语态

问题描述:

Peole use metal for making machines .改成被动语态

如果Peple是一个人名,那么use应该加"s"或"d",不然改成被动的时候要用"are"吧

Metal is used for making machines (by people)

Metal is used for making machines by people.