We are going to have a picnic when we aer going to be free next Friday找出这句话的错误
问题描述：
We are going to have a picnic when we aer going to be free next Friday找出这句话的错误
答
将其改为：We are going to have a picnic when we are free next Friday,在时间状语从句里,用“一般现在时”代替'将来时",这是英语语法规定的