[单选题]Susan had quit her well-paid job and( )as a volunteer in the neighborhood when I visited her last year.

A

is working

B

was working

C

has worked

D

had worked

正确答案:B
题目解析

本题考查动词的时态。句中的when I visited her last year确定了过去的某一时间点,所以此处表示当时动作正在进行,所以用过去进行时。故答案为B。
句意:Susan已经辞去那份报酬丰厚的工作,去年我去看她的时候她正在社区当志愿者。

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