问题
选择题
He tried to deal with the ever-increasing burden of his work，but finally _____ and had to take a complete rest.
A．broke away
B．broke up
C．broke down
D．broke out
答案
答案：C
短语辨析, A．脱离 B．分手;打碎C．发生故障;失败 D．爆发.句意:他试图处理他不断增加的工作负担,但最后失败了,不得不彻底休息一下.故选A.