They don't eat fish,because in the early days---their food h

They don't eat fish,because in the early days where their food habits were formed,it was not available.
选A.
where.是状语从句.
修饰'it was not available'
再问： 纠正一下，这是一句定语从句，修饰the early days in early days这一个短语作先行词，在从句中充当时间状语
再答： Oh, Yes, You are right. Thanks. They don't eat fish,because in the early days where their food habits were formed,it was not available. 选A. where.....是定语从句.修饰......days 纠正一下，这是一句定语从句，修饰the early daysin early days这一个短语作先行词，在从句中充当时间状语