he ran as fast as possible to catch up with the other转换he ran as fast as possible___ ___ he couldcatch up with the other.

问题描述:

he ran as fast as possible to catch up with the other转换he ran as fast as possible___ ___ he could
catch up with the other.

so that表示目的或结果

in order that=so that

so that 或 in order that 原句中用to表示目的.为了赶上其他人,他尽可能地快跑.
横线后面是一个完整的句子,故要用that引导.
此句实际上是一个目的状语从句,引导词一般有so that和in order that,从句中常含有情态动词will/would或can/could.