Question

There are many trees on___side of the street.They are tall and green.

A.every B。both c.either 解答，谢谢

Answer 1

选C. either 特指两者之一，both 指两者都，后面用复数, every 用于两者以上，该空还可以填each，each 指两者或两者以上之一.

Answer 2

C,街道的两边，所以用either合适，
B的话，side后要加s