问题
选择题
After several sleepless nights, Mr. Smith ______ a perfect solution to the problems.
A．kept up with
B．put up with
C．came up with
D．ended up with
答案
答案：C
题目分析：kept up with赶得上，和……保持联系；put up with忍受，容忍；came up with提出，想出，赶上；ended up with以……而结束.句意：在几个无眠的夜晚之后，史密斯先生相处了一个解决这个问题的完美的办法。结合语境可知选C。