He will be the first person to come to school.为什么要用to come

问题描述:

He will be the first person to come to school.
为什么要用to come

the first one to do sth.
to do 这里是做定语,修饰person

the first to do sth.

英语中,当名词前有序数词表示“第几”的时候,后面的定语都用to do sth ,这是习惯,而且接从句还要用完成时态