At night, we can see colorful lights on both_______of the streets
问题描述：
At night, we can see colorful lights on both_______of the streets
AsidesBsideCside'sDsides's
答
A
在街道（河流,马路等）两边有以下几种表达方式：
on both sides of 两边都有
on each side of 在每一边
on either side of 要么这边,要么那边
on neither side of 两边都没有
只有both 后跟sides ,其它几种情况都跟side