古老得语法题

flowersheep

95。5。57
The guilds of the Middle Ages began as associations( in) merchants (established for) the purpose of (regulating) the rules (of commerce.)

答案说in改with ,意思不通啊，我觉得 purpose to do sth., purpose of doing 不对

best_tu

固定搭配association with

the purpose of doing sth也是固定搭配,这儿的purpose是名词不是动词