the windows and doors came from old buildings around the town that were being pulled down.The walls

题目

the windows and doors came from old buildings around the town that were being pulled down.The walls are made from old glass bottles that are glued togeher这是课文里的 都说的是同一个房子里的墙壁和门窗 问什么 门窗用过去式came from 而墙用 are made from 时态不同啊! .为什么啊.

答案