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
C
考查动词词组辨析。break away脱离，摆脱；break up解散；打破；break down打破；精神不支，精神垮掉；break out爆发。根据题意可知，C项正确，即最后他支持不住了。
