Question

_______ finish their task ahead of time, the students worked harder and harder.

A．So as to

B．As to

C．In order to

D．In order that

Answer 1

C

试题分析：考查目的状语：句意：为了提前完成他们的任务，学生们越来越努力了。so as to不用于句首。而in order to“为了……”，可以放在句首，in order that后面接从句，as to至于，选C。