While I down the street, I my classmates.
A. was walking; met
B. walked; met
C. was walking; was meeting
D. walked; was meeting
网友回答
(答案→)A. was walking; met
B. walked; met
C. was walking; was meeting
D. walked; was meeting
解析：while 引导的时间状语从句，主句的动作发生在从句的动作之中，主句用一般时态，从句用进行时态，故答案选A