There are many tall trees on ___side of the road.A.either B.both C.each D.every

题目

There are many tall trees on ___side of the road.A.either B.both C.each D.every
请告知原因
each 同样是两者以上，我的同事们认为each 与either 均可，是否有人给我解释？

答案

There are many tall trees on ___side of the road.
在看这道题时,要考虑后面用的是side,为单数,所以一定是on either side of the road
答案为A.either
both为都,后面要接sides,both sides
each和every应该都是指有多个边时,因此不适用
each一般指多边中的每一边：
There are trees on each side of the park.公园四边各栽有树木.
公园可以有四个边,而公路和街道则不能有四条边,不要用中文来考虑英语就好了