13.incident / accident / by accident / by chance
by accident 偶然地;不经意地
by chance 偶然地，意外地;无意之中;碰巧;偏巧
【例】Unfortunately, he was killed in a(an) __________.
A. incident B. accident C. by accident D. by chance
14.above all / in all / after all / not at all
above all 尤其是，最重要的
in all 总共，共计
after all 毕竟，到底
not at all 一点也不
【例】You deserve a rest __________ that hard work.
A. above all B. after all C. in all D. not at all
15.in brief / in case / in case of / in charge of
in brief 简单地说，简而言之;总之
in case 假使;免得;以防;也许
in case of 万一，如果;防备
in charge of 主管，负责;照顾
【例】The place was _________ a Major Donald, a good-nature fellow.
A. in brief B. in charge of C. in case D. in case of