It is possible that tubes made from animal bones were used for..(were used for的主语是tubes吗>)
问题描述：
It is possible that tubes made from animal bones were used for..(were used for的主语是tubes吗>)
It is possible that tubes made from animal bones were used for spraying because hollow bones.不用翻译.另外made form animal bones 是不是插入语?were used for的主语是tubes吗
答
made form animal bones 是定语实际上等于定语从句which are made from animal bones.tubes是 were used for的主语