Lucy met her mother in the park by chance.
A. with accident
B. by accident
C. by mistake
D. by opportunity
网友回答
A. with accident
(答案→)B. by accident
C. by mistake
D. by opportunity
解析:A.with accident 无此表达 B.by accident偶然,意外 C.by mistake 错误地 D.by opportunity机会,时机;by chance偶然,意外地;句意:露西在公园意外的遇到了她的妈妈。故选B