The roads are crowded walking to work is even quicker than driving.
A. in order that
B. so that
C. so as to
D. in order to
网友回答
A. in order that
(答案→)B. so that
C. so as to
D. in order to
解析：考查结果状语：A. in order that B. so that C. so as to D. in order to这几个词都表示目的状语，但so that还可以引导结果状语从句，句意：道路很拥挤以至于走去上班比开车都快。所以这里需要结果状语，选B。