The weather was____hot that she decided to have the barber ____her hairstyle.
A. rather; to change
B. much too; change
C. so; change
D. too; changed
so是副词,常常用来润饰形容词和副词，that引导成果状语从句，常和 too…to… 结构交换。
➢My sister is so young that she can't go to school. =My sister is too young to go to school.
2.so that… (表明意图)为了，以便引导意图状语从句
➢My sister made a model plane so that she could help with her friend studying the science last night.
3.have sb do sth 让或人做某事
➢He had the security staff throw them out of the club.
4.much to…. 十分…
➢These shoes are much too tight.这双鞋太紧了。