Question

--- Shenzhen is a beautiful city.
--- Yes. You can see a lot of flowers and trees on ________ of the streets .

A．both sides

B．all sides

C．both side

D．all side

Answer 1

A

试题分析：因为all表示三者以上的“都”，而一条路只有两边，故应排除BD；both后面应跟名词复数，所以本题选A。
点评：本题的关键在于路有两边，然后确定both和and的用法。所以做题应该考虑清楚全面。