题干

I ___________along the pavement yesterday when some strangers came up and asked me the way to the police station.
A.is wanderingB.was wanderingC.has wanderedD.had wandered
上一题 下一题 0.64难度 单项选择 更新时间:2013-06-20 05:18:34

答案(点此获取答案解析)