please answer the question in a loud enough voice____all the class may hear

so　that　在这里引导目的状语从句,既然是从句那么后面的句子就应该是完整的,而all the class may hear后面明显缺宾语所以选C以下是二者区别及用法,　1、在所给句子中,两个短语都可以使用,而且都正确,即：I hurried ...