对so that引导的句子提问用什么He got up early so that he could catch the early bus.对so that以及后面的句子提问

so that表示目的，译为"为了"，所以提问时要问＂为什么＂，可以用why did he get up early？或者用what did he get up early for？

很高兴为你so that 引导的是目的状语从句,意思为:为了,提问要用为什么?Why did he get up so early What did he get up early for For what did he get up so early What was the reason for his getting up early ...