he went to his uncle's house {to say} goodbye {to} them括号里为什么那么填?；理由
问题描述：
he went to his uncle's house {to say} goodbye {to} them
括号里为什么那么填?；理由
答
第一个to 表目的第二个to固定搭配
答
to say...是目的状语；第二个to 是固定搭配,say goodbye to,对...说再见·