单选题 Jack worked as hard as he could______up with the others.
【正确答案】 B
【答案解析】[解析] 本题考查固定用法。“为了”的表示法有:in order to,so as to,in order that,so that。而在in order that和so that引导的从句中一般需要加can,could,may,might 等情态动词,故C不正确,故选B。 [知识拓展] 它们四个的区别是:in order to和so as to后边应该加动词原形,in order that和so that后边加从句;此外,in order to和in order that可以用在句首,而so as to和so that不能用于句首。