问题补充:
After a second thought, Bill a better idea of how to solve the problem.
A. put up with
B. kept up with
C. came up with
D. mixed up with
答案:
A. put up with
B. kept up with
(答案→)C. came up with
D. mixed up with
解析:考查词组:A. put up with容忍B. kept up with跟上C. came up with想出,提出,D. mixed up with和…混淆,句意:再一想,Bill想出了更好的解决问题的主意。选C。