we use knives for cutting things.

we use knives for cutting things. Knives are used for cutting things. 主动句People use knives for cutting things变成被动句怎么变? People use knives for cutting things.把下列句子变为被动句 英语语言运用按要求变换下列句型：1.They use knives for cutting things.（变为被动语态 We can use knives to cut things 为何用knives Knives are used for cutting things.为什么不能用Knife? We use a pair of scissors for cutting things We use a pair o We use knives to cut things怎么变被动句 people use knives to cut things These knives can be used for cutting.翻译 Do people use knives to cut things?改为被动语态