There are many trees on side of the street.A. allB. bothC. everyD. each

问题补充：

There are many trees on side of the street.

A. all

B. both

C. every

D. each

答案：

A. all

B. both

C. every

(答案→)D. each

解析：表示在街道两边中的每一边，可用单词each来表示，故本题选D。