问题补充:
Students should everything important that their teachers give in class.
A. set up
B. set down
C. set aside
D. set out
答案:
A. set up
(答案→)B. set down
C. set aside
D. set out
解析:句意:学生应该记下老师在课堂上所讲的一切。set up 设立; set down记下; set aside留出; set out出发。根据句意故选B。