In the museum,I saw many beautiful dresses ( ) of silk and cotton.

问题描述:

In the museum,I saw many beautiful dresses ( ) of silk and cotton.
答案是made,可是不是有一个词组be made of吗》为什么不用were made?

注意句子结构,已经有谓语saw了 ,就不能再有were了 ,这里的made是做定语修饰dresses的,或者这里可以改为定语从句修饰,即:I saw many beautifuf dresses (which were made of)silk and cotton.