There is a map of China __ the wall.Can you point out where Hong Kong is?

题目

There is a map of China __ the wall.Can you point out where Hong Kong is?
和The wall had a hole __ it 这两个题,上面是那个是on,下面这个填in,为什么呢?

答案

地图不属于墙体的一部分,只是贴在上面,在墙上on
那个洞是墙体的一部分,在墙中 in