【题目】Alice had graduated from university and ____as a volunteer in the countryside when I contacted her last year.
A. has been working B. was working C. has worked D. had worked
在线课程【答案】B
【解析】
考查过去进行时。句意：当我去年联系Alice的时候，她已经从大学毕业，正在社区当一名志愿者。此处当一名志愿者是指在“我”去拜访她时正在发生的动作，所以应用过去进行时。故选B。