_ make progress, she has been studying hard.
A. So as to
B. In order to
C. So that
D. In order that
网友回答
A. So as to
(答案→)B. In order to
C. So that
D. In order that
解析：
考查目的状语的用法：So as to，In order to做状语后接动词；So that，In order that
做状语后接从句，而且In order to可以放在句首，So as to不可以放在句首。