帮助划分句子成分I have just been to Shanghai

问题描述:

帮助划分句子成分I have just been to Shanghai

I 主语
have been to 表示:曾经到过某地,是固定结构,在此作谓语动词.
Shanghai 是宾语.
just 表示:仅仅,是副词,在句中作状语.