He always took a notebook with him he could take down something important at all times and all places.
A. because
B. so that
C. in case
D. if only
网友回答
A. because
(答案→)B. so that
C. in case
D. if only
解析：考查连词：A .because因为，B. so that为了，以至于，C. in case以防，D .if only但愿…，句意：他总是带个笔记本这样他可以随时随地记下一些重要的东西。选B。