there are lots of flowers on________sides of the river.这里是填both还是 each呢?最好有详解,

题目

there are lots of flowers on________sides of the river.这里是填both还是 each呢?最好有详解,

答案

答案：There are lots of flowers on【both】sides of the river.
翻译；河的两边都是花朵.
语法；both表示两者都肯定,后面跟复数名词.
each；后面跟单数名词.
解析；sides 用了复数形式,所以要用both.
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