His name is Alan Robert Smith. His first name is___.

问题描述:

His name is Alan Robert Smith. His first name is___.

一般英语人名都是三个部分组成:第一个是名字first name ,第二个也是名字middle name ,最后面的是姓family name .
习惯称呼,第二个名字常被省去.
所以,答案是Alan