－Bob, have you packed yet?
－Yes, Mum.
－Look over and that you have taken everything you need.
A. look for
B. make sure
C. find out
D. work out
网友回答
A. look for
(答案→)B. make sure
C. find out
D. work out
解析：look for寻找;make sure确信,证实;find out查明,找出;work out解决,计算出. 句意:鲍勃,你装好了吗?_是的,妈妈. _检查一遍,确信你带上了你需要的每件东西. 结合语境可知选B.