there are many modern buildings on ( side) of the street

问题描述:

there are many modern buildings on ( side) of the street
there are many modern buildings on( ) of the street.a.either side b.all sides c.both side d.every side

选c both sides
a.either指两者中任意一个
b.all用在3个东西以上side只有两边
d.没有这种说法,应该是each side