—Does he know how to work out the problem?---Yes, he has a good idea to solve it. ----Yes, he has a good idea to solve it.
A. caught up with
B. kept up with
C. e up with
D. put up with
网友回答
A. caught up with
B. kept up with
(答案→)C. e up with
D. put up with
解析：e up with意为：想出/找到（答案或想法）；A为赶上。B为跟上；D为容忍。