题目内容：

what's the bottle made __?it was 填空made __ china.China started to be made in China.
what's the bottle made __?it was made __ china.China started to be made in China.

优质解答

of of
be made of 是指“看的出原来材料”的 “由什么做成”,china的c不大写,就是陶瓷的意思