either与both的区别

问题描述:

either与both的区别
there are trees on____side of the street
A.either B.both
并说明理由

A
either 两者之中)任一的,后面的名词用单数,本题是side所以用either
例句:You may go by either road.你两条路都可以走.
both两个都,后面的名词用复数,both sides 两边