yesterday about eleven o'clock he ()towards the park.

问题描述:

yesterday about eleven o'clock he ()towards the park.
A.was talking B.walked C.had been walking D.had walked
请说明答案及解析,打错了A.was walking

选A ,yesterday表示是过去,about eleven o'clock强调那一刻的行为.综合起来是过去进行时.表示过去某时刻这在做的事.
整句的意思就是昨晚11点左右的时候他正在向公园走去(这在去公园的路上).