He worked hard （ ） he might be fired by the boss.

He worked hard （ ） he might be fired by the boss.
A、in case that
B、in spite that
C、for fear that
D、in order that
【正确答案】：C
【题目解析】：本题考查介词短语辨析。in case that“万一”， in spite that”尽管”， for fear that“生怕，惟恐”，in order that“为了”。句意：他拼命地干活惟恐被老板解雇。故选C。