When you come into our school yard, you will notice our beautiful school by green trees.A.

网友回答

A. surrounding
(答案→)B. surrounded
C. to surround
D. being surrounded
解析：这题考查过去分词做宾语补足语的用法：notice +宾语+宾语补足语，因为school和surround之间是被动关系，选B。句意是：当你进入我们校园你会发现我们校园被绿树包围着，选B。