All there's left to do is run这句子是什么结构

问题描述:

All there's left to do is run这句子是什么结构
来自taylor swift的love story.还有i talked to up dad go pick out a white dress 这里面为什么是 go pick out?

All there's left to do is run他们剩下能做的就只有跑.All there's left to do主语从句
go 有强调动作的意思
有时候歌词也是为了凑音节