There are many flowers and trees on sides of the Century Road.A. eachB. everyC. bothD. all

问题补充：

There are many flowers and trees on sides of the Century Road.

A. each

B. every

C. both

D. all

答案：

A. each

B. every

(答案→)C. both

D. all

解析：考查代词的用法。each和every“每一个”，后可接单数名词；both“两者都……”后接可数名词复数；all“三者（或三者以上）都……”。句意“在中心公路的两边有许多花和树。”故选C。