Quite __________, I met the one I wanted to see on the train.

Quite __________, I met the one I wanted to see on the train.
A、by accident
B、by coincident
C、by incident
D、by happening
【正确答案】：A
【题目解析】：A项：偶然地；B项：改为by coincidence：巧合地；C项：入射; D项：没有这种说法啦，题意：很巧的是，我在火车上遇到了我想要看见的人。A项符合题意。