问题
选择题
After working until midnight for two weeks, he finally ______ and had to stay in the hospital.
A．broke up
B．gave in
C．broke down
D．gave up
答案
答案：C
题目分析：A. broke up分手，B. gave in屈服，C. broke down崩溃，D. gave up放弃，句意：在连续两个星期工作到午夜后，他最终累倒了，不得不住院。所以选C。